Exercise - I

1. Primary sex organ differ from the 6. The primary regulator of Leydig cell
secondary sex organs in all the following secretion is:
except: (1) FSH releasing factor
(1) They produce gametes (2) Androgen-binding protein
(3) Luteinizing hormone (LH)
(2) They secrete sex hormones
(4) Follicle stimulating hormone
(3) They are concerned with the
conduction of gametes 7. Testosterone is secreted by:
(4) Testes in male and ovaries in female (1) Leydigs cells (2) Sertoli cells
are the examples of primary sex (3) Pituitary gland (4) Testis
organs
8. Outer coat of seminiferous tubules is
composed of fibrous connective tissue
2. The organ which produces gametes are
called:
called ..A.. and which neither produces
(1) Tunica propria (2) Lamina propria
gametes nor hormones are called ..B.. .
(3) Plica semilunaris (4) Tunica albuginea
Here A and B represent.
(1) A – primary sex organs; 9. At the time of sexual excitation, crura
B – Secondary Sex organs muscles in penis:
(1) Relaxed (2) Contracted
(2) A – Secondary sex organs;
(3) Collapsed (4) None
B – Primary Sex organs
(3) A – Tertiary sex organs; 10. Scrotal sacs of man are connected with
B – Secondary Sex organs the abdominal cavity by:
(1) Inguinal canal (2) Haversian canal
(4) A – Secondary sex organs;
(3) Vagina cavity (4) Spermatic canal
B – Tertiary Sex organs
11. Partitions of testis develop from: -
3. Gubernaculum is the ligamentous (1) tunica vasculosa
connective cord which connects: (2) tunica albuginea
(1) Testis to kidney (3) tunica vaginalis
(2) Testis to scrotum (4) rete testis

(3) Ovary to abdominal wall 12. Which is not a secondary sex organ ?
(4) Testis to Abdominal cavity (1) Vagina (2) Penis
(3) Prostate gland (4) Mammary gland
4. The tunica albuginea is a covering
around the: 13. If testes of a male are not transferred
from abdominal cavity to scrotal sac
(1) Testes (2) Kidneys
then:
(3) Uterus (4) Epididymis
(1) Person dies
(2) Absence of male characters
5. Testosterone is a/an:
(3) Development of male reproductive
(1) Steroid (2) Protein
system will not occur
(3) Octapeptide (4) Glycoprotein (4) Sperms will not form
14. Penile urethra traverses through: 22. Which one is unpaired gland in male
(1) Corpora cavernosa reproductive system ?
(2) Corpus spongiosum (1) Seminal vesicle (2) Cowper's gland
(3) Prostate gland (4) Lacrimal gland
(3) Corpus callosum
(4) Corpus striatum 23. Sugar fructose is present in the
secretion of:
15. Cryptorchidism is a condition of testes: (1) Seminal vesicle (2) Perineal gland
(1) Unable to descend in scrotal sacs (3) Cowper's gland (4) Bartholin's gland
(2) Unable to produce sperms
24. What would happen if vas deferens of
(3) Having been surgically removed
man are cut?
(4) Having remained undeveloped (1) Semen is not formed
(2) Spermatogenesis does not occur
16. Sertoli cells are found in:
(3) Semen is without sperms
(1) Testis of mammal (4) Sperm are non motile
(2) Ovary of mammal
(3) Testis of Ascaris 25. Leydig cells are found in:
(1) Seminiferous tubules
(4) Pancrease of frog
(2) Testis
17. Which of the following controls the (3) Ovary
function of Sertoli cells ? (4) Epididymis

(1) FSH (2) ICSH 26. Temperature in scrotum necessary for

(3) Oestrogen (4) Testosterone sperm formation should be:
(1) 2oC above than body temperature
18. Cauda epididymis leads to: (2) 2oC below than body temperature
(1) Rete testis (2) Vas efferens (3) 8oC above than body temperature
(3) Vas deferens (4) Ejaculatory duct (4) 8oCbelow than body temperature

19. Major part of semen is secreted by: 27. Accessory glands of male reproductive
system are:
(1) Seminal vesicle (2) Prostate gland
(1) Prostate and seminal vesicles
(3) Cowper's gland (4) Bartholin's gland
(2) Prostate, Bartholin’s and seminal
vesicles
20. In male, the acidity in the urethra is
(3) Seminal vesicles and Bartholin’s
neutralized by the secretions of:
(4) Prostate, Cowper’s and seminal
(1) Cowper's gland (2) Bartholin glands
vesicles
(3) Perineal glands (4) Leydig cells
28. Epididymis is:
21. Seminal plasma contains the secretions of: (1) Network of sinuses between
(1) Follicles, uterus and prostate gland seminiferous tubules and vasa
(2) Prostate, Cowper's and Bartholin's efferentia
(2) Intermidiate structure between rete
gland
testis and vasa effferentia
(3) Seminal vesicle, uterus and prostate
(3) A long coiled tube between vasa
gland efferentia and vas deferens
(4) Seminal vesicle, prostate and (4) Connection between vas deferens
Cowper's gland and seminal vesicle
29. Which of the following releases inhibin Answer codes:
to control spermatogenesis ? (1) A = 1, B = 2, C = 3, D = 5, E = 4
(1) Rete testis (2) Follicular cells (2) A = 3, B = 1, C = 4, D = 2, E = 5
(3) Leydig's cells (4) Sertoli cells (3) A = 2, B = 4, C = 3, D = 5, E = 1
(4) A = 3, B = 1, C = 2, D = 5, E = 4
30. Spermatogenesis and sperm
36. Correct sequence of different layers of
differentiation are under the control of:
uterine wall is (respectively from outside
(1) FSH to inside) :-
(2) TSH (1) Perimetrium → Endometrium →
(3) Progesterone Myometrium
(4) Parathyroid Harmone (2) Myometrium → Perimetrium →
Endometrium
31. Testes descend into scrotum in
(3) Endometrium → Myometrium →
mammals for: Endometrium
(1) Spermatogenesis (4) Perimetrium → Myometrium →
(2) Fertilization Endometrium
(3) Development of sex organs
37. Penis is male external genitalia which
(4) Development of visceral organs
has three cylindrical masses of erectile
32. Which cells are found in between tissue. The erect penis shows:
spermatogonia? (1) Two dorsal corpus spongiosum and
(1) Germinal cells (2) Epithelial cells one ventral corpora cavernosa
(2) Two dorsal corpora cavernosa and
(3) Sertoli cells (4) Lymphatic space
one ventral corpus spongiosum
33. Secondary sex organ is: (3) Two ventral corpora cavernosa and
(1) Testis (2) Ovary one dorsal corpus spongiosum
(3) Beard (4) Vasa deferens (4) One dorsal corpora cavernosa and
two ventral corpus spongiosum
34. Formation of sperms occurs in: -
38. Abdominal ostium is the aperture
(1) rete testis present in: -
(2) seminiferous tubules (1) oviduct
(3) Both (1) & (2) (2) fimbriated fallopian funnel
(4) Mediastinum testis (3) ovary
(4) cloaca
35. Match the following:
39. Which is not correct about sertoli cells ?
Set I Set II
(1) It is situated in between the
A. Inguinal 1. Network of channels germinal epithelial cell
canal after seminiferous (2) It is related with the nutrition of
tubules sperm
B. Rete 2. Androgen (3) It forms blood testis barrier
(4) It secretes testosterone
testis
C. Leydig 3. For descending of 40. Bartholin’s glands occur in: –
(1) Females and produce oestrogen for
cells testis
regulating secondary sexual
D. Prepuce 4. Dorsal bundles of characters
spongy tissues (2) Males and form liquid part of semen
E. Corpora 5. Terminal skin of penis (3) Females and help in vestibular lubrication
(4) Males and produce alkaline fluid for
cavernosa
neutralising urethral acidity.
41. Synthesis of testosterone by Leydig cells 50. Identify the odd one from the following:
is stimulated by: (1) Labia minora (2) Fimbriae
(1) GH (2) TSH (3) FSH (4) ICSH (3) Infundibulum (4) Isthmus

42. Function of prostate glands is: 51. Endometrium is lining of:

(1) Storage of semen (1) Testis (2) Urinary bladder
(2) Provide motility to sperms (3) Uterus (4) Ureter
(3) Formation of sperm
52. Bartholin's glands occurs in:
(4) Release of hormones
(1) Females and help in vestibular
43. Which one of the following is not a male lubrication
accessory gland ? (2) Females and produce oestrogen for
(1) Seminal vesicle regulating secondary sexual
characters
(2) Ampulla
(3) Prostate (3) Males and form liquid part of
spermatic fluid
(4) Bulbourethral gland
(4) Males and produce alkaline fluid for
44. The head of the epididymis at the head neutralising urethral acidity.
of the testis is called:
53. Which of the following is not related to
(1) Cauda epdidymis (2) Vas deferense
vulva ?
(3) Caput epididymis (4) Gubernaculum
(1) Mons-pubis (2) Clitoris
45. If the epididymis is being removed, then (3) Labia majora (4) Cervix
what will happen ?
54. The wall of the uterus has three layers
(1) Short life span of sperm
of tissue. The layer which undergoes
(2) Early cross the pathway
cyclical change during menstrual cycle
(3) Sperm will be incapable for
is:
fertilization
(1) Perimentrium (2) Myometrium
(4) Functional maturation is early
(3) Endometrium (4) Both (2) & (3)
46. When do both LH & LSH attain a peak 55. Labium majora of a female mammal is
level in a menstrual cycle. homologous to:
(1) In last week of the cycle (1) Scrotal sac (2) Prostate gland
(2) In mid of the cycle (3) Epididymis (4) Seminal vesicle
(3) During Initial days of cycle
(4) On 4th day of cycle 56. ‘Spermiogenesis’ is a process in which: -
(1) spermatocytes give rise to
47. Development of foetus takes place in: spermatozoa
(1) Vagina (2) Uterus (2) spermatogonium produces a
(3) Ovary (4) Oviduct spermatid
(3) Spermatids are changed into
48. The mitotic division start as the zygote
spermatozoa
moves through the ______ of the oviduct
(4) dormant spermatozoa become
called cleavage towards the uterus.
active just before ejaculation
(1) Isthmus (2) Ampulla
(3) Fimbriae (4) Infundibulum 57. Abnormal conditioning when the
mammary glands of man become female
49. Lower narrow end of uterus is called: like is called:
(1) Urethra (2) Cervix (1) Feminization (2) Gonochorism
(3) Fundus (4) Vulva (3) Gynacomastism (4) Gynoecism
58. Expanded proximal part of oviduct in 66. First menstruation begins at puberty
female is: and is called:
(1) Uterus (2) Ampulla (1) Menses (2) Menopause
(3) Isthmus (4) Infundibulum (3) Menarche (4) Implantation

59. When both ovary are removed from

67. In Human, duration of menstrual cycle is:
human then which hormone is
decreases in blood ? (1) 21 days (2) 28 days
(1) Oxytocin (3) 38 days (4) 40 days
(2) Prolactin
68. Stages in menstrual cycle are:
(3) Estrogen
(1) Recovery and proliferative phase
(4) Gonadotrophic releasing factor
(2) Proliferative and secretory phase
60. Correctly matched pairs are: (3) Proliferative, secretory and
1. Clitoris - Erectile body in female menstrual phase
homologous to penis of male
(4) Recovery phase, secretory phase and
2. Sexual intercourse - coitus
phase of menstrual flow
3. Colostrum - Secretion found in
seminal fluid 69. Cessation of menstrual cycle is called:
4. Areola - Pigmented circular area
(1) Ovulation (2) Menopause
around the nipple.
(3) Menarche (4) Menses
Answer codes:
(1) 1 and 2 are correct 70. Phase of menstrual cycle in human that
(2) 2 and 4 are correct lasts for 7-8 days is:
(3) 1 and 3 are correct
(1) Follicular phase (2) Ovulatory phase
(4) 1, 2 and 4 are correct
(3) Luteal phase (4) Menstruation
61. Womb is the another name of:
71. Stem cells are found in: -
(1) Vagina (2) Cervix
(3) Oviduct (4) Uterus (1) Ectoderm
(2) Endoderm
62. Identify the structure belongs to female (3) Inner cell mass
external genitalia:
(4) Mesoderm
(1) labia minora (2) Fimbriae
(3) Infundibulum (4) Isthmus 72. Progesterone level falls leading to:

63. Which temporary endocrine gland forms (1) Gestation (2) Menopause
in ovary after ovulation ? (3) Lactation (4) Mensturation
(1) Corpus callosum (2) Corpus albicans
(3) Corpus luteum (4) Corpus striata 73. If menstual cycle is 30 days & bleeding
start on Ist day then ovulation occur on:
64. Corpus luteum secretes: (1) 14th day (2) 18th day
(1) LH (2) Oxytocin (3) 30th day (4) 16th day
(3) Progesterone (4) FSH
74. Pregnancy hormone is:
65. Corpus luteum is:
(1) Estrogen (2) Progesterone
(1) Excretory (2) Endocrine
(3) Oxytocin (4) FSH
(3) Digestive (4) Reproductive
75. Some important events in the human 79. The following graph of relative
female reproductive cycle are given concentration of the four hormones
below. Arrange the events in a proper present in the blood plasma of a woman
sequence: during her mestural cycle. Identify the
A - Secretion of FSH, hormones. A, B, C and D.
B - Growth of corpus luteum,
C - Growth of the follicle and oogenesis,
D - Ovulation,
E - Sudden increase in the levels of LH
(1) ADCEB (2) BACDE
(3) ACEDB (4) CADBE

76. Which one of the following statements (1) A– FSH, B– Progesterone, C– LH,
is incorrect about menstrual cycle ? D – Oestrogen
(1) The first menstruation begins at the (2) A– LH, B– Progesterone, C– FSH,
puberty and is called menarche. D – Oestrogen
(2) Lack of menstruation may also occur (3) A– FSH, B– Oestrogen, C– LH,
due to some factors like stress, poor D – Progesterone
health. (4) A– LH, B– Oestrogen, C– FSH,
(3) Corpus luteum secretes large D – Progesterone
amounts of progesterone which is 80. Match the hormones in column I with
essential for maintenance of their functions in column II. Choose the
endometrium answer, which given the correct
(4) In absence of fertilisation, corpus combination of the two columns.
luteum degenerates in luteal phase Column I Column II
and new folicles starts developing Perpare endometrium wall for
immediately due to progesterone. A. FSH 1.
implantation
Develops female secondary
77. Ovulation in the human female normally B. LH 2.
sexual characters
takes place during the menstrual cycle: C. Progesterone 3. Contraction of uterine wall
(1) At the end of the proliferative phase D. Oestrogen 4. Development of corpus luteum
(2) At the mid secretory phase 5. Maturation of Graafian follicle
(3) Just before the end of the A B C D
seecretory phase (1) 5 4 1 2
(4) At the beginning off the proliferative (2) 4 5 2 1
phase (3) 4 3 2 5
(4) 5 1 2 4
78. The cause of sudden increase of the LH
hormone in the middle of the cycle 81. Which of the following hormone initiates
(about 14th day) is: a metabolic rise that results into the
(1) Negative feedfack of progesterone rupture of graafian follicle?
on the hypothalamus (1) Prolactin (2) HCG
(2) Negative feedback of estrogen on (3) FSH (4) LH
the anterior lobe of pituitary
(3) Positive feedback of FSH on the 82. Level of estrogen and progesterone are
overy minimum at the time of:
(4) Positive feedback of estrogen on the (1) Follicular phase (2) Ovulation
anterior lobe of pituitary (3) Secretory phase (4) Menses
83. What is the oligospermia condition? 89. Acrosome formation in spermatogenesis
(1) If sperm count is 40 to 120 milion/ml occurs in which stage?
(2) If sperm count is < 20 million/ml (1) spermiogenesis
(3) If sperm count is < 60 million/ml (2) First meiotic division
(4) If sperm count is 20 million to 40 (3) growth phase
million/ml (4) spermiogenesis
84. For normal fertility:
90. How many polar bodies are produced
(1) Atleast 60% sperm must show
during the entire process of oogenesis in
vigrous motility
unmarried/virgin human female?
(2) Atleast 40% sperm must have
normal shape and size (1) Three (2) Two

(3) Atleast 30% sperm must have (3) Four (4) One
normal activity and function
91. During spermatogenesis how many
(4) Atleast 40% sperm must show
sperms are formed from a single primary
vigrous motility or 60% sperm must
spermatocyte:
have normal shape and size
(1) 1 (2) 2 (3) 4 (4) 8
85. Which piece of a sperm is called power
house ? 92. How many secondary spermatocytes
(1) Head piece (2) Neck piece will form 400 spermatozoa?
(3) Middle piece (4) Tail piece (1) 100 (2) 400 (3) 40 (4) 200

86. "Spermiogenesis" is a process in which: 93. Which hormone acts on uterine

(1) Spermatids change into myometrium during parturition?
spermatozoa (1) LH
(2) Spermatogonia produce a spermatid
(2) Estrogen
(3) Spermatocytes give rise to
(3) Relaxin
spermatozoa
(4) Oxytocin
(4) Dormant spermatozoa become
active just before ejaculation. 94. The head of a mature sperm is mainly
87. In gametogenesis, reduction division composed of:
take place during: (1) Elongated nucleus and acrosomal
(1) Multiplication phase material
(2) Growth phase (2) Mitochondria, cytoplasm & nucleus
(3) First maturation division (3) Two centriole & the axial filament
(4) Second maturation (4) All of the above

88. Correct order of spermatogenesis is: 95. Cytoplasm of ovum does not contain:
(1) Primary Spermatocytes → Spermatogonia (1) Ribosomes (2) Mitochondria
→ Spermatid → Sperm (3) Goldi bodies (4) Centrosomes
(2) Spermatogonia → Spermatid →
Spermatocytes → Sperm 96. First meiotic division during Oogenesis
(3) Spermatid → Spermatogonia → occurs in:
Spermatocytes → Sperm (1) Oogonia
(4) Spermatogonia → Primary Spermatocytes (2) Second polar body
→ Secondary Spermatocytes → (3) Primary oocytes
Spermatid → Sperm (4) Secondary oocytes
97. The minute cells which separate from 103. The process of spermatogenesis and
the developing ova during their oogenesis in most vertebrates are under
maturation are called the influence of which hormone:
(1) Primary Oogonia (1) Oxytocin (2) FSH
(3) ACTH (4) LH
(2) Secondary Oogonia
(3) Polar bodies 104. Number of eggs released in the life time
(4) Primary spermatogonia of a woman is approximately :
(1) 4,00,000 (2) 450
98. Which of the following is haploid ? (3) 4000 (4) 1,60,000
(1) Primary spermatocytes & primary
105. A glycoprotein non-cellular membrane
Oocytes
which normally surrounds the ovum of a
(2) Secondary spermatocytes & secondary mammal:
Oocytes (1) Corona radiata
(3) Spermatogonia and Oogonia (2) Jelly envelope
(4) Spermatogonia and secondary (3) Zona pellucida
oocyte (4) Granulosa membrane

99. How many sperm and ova will be formed 106. Which one holds corona radiata cells
from 50 secondary oocytes and 50 together ?
secondary spermatocytes ? (1) Lipoprotein
(1) 50 ova & 200 sperm (2) Liposaccharide
(3) Oligosaccharide
(2) 50 ova & 100 sperm
(4) Mucopolysaccharide
(3) 100 ova & 200 sperm
(4) 100 ova & 400 sperm
107. Which is the correct sequence of layers
in the mammalian egg from outside to
100. Polar body is produced during the
inside?
formation of:
(1) Zona pellucida, corona radiata,
(1) Sperm (2) Secondary oocyte plasma membrane
(3) Oogonium (4) Spermatocytes (2) Corona radiata, zona pellucida,
plasma membrane
101. A human female has the maximum (3) Plasma membrane, zona pellucida,
number of primary oocytes in her corona radiata
ovaries: (4) Corona radiata, Plasma membrane,
(1) At menopause Zona pellucida,
(2) At Puberty
108. Oocyte is liberated from ovary under the
(3) At Birth influence of LH, after completing:
(4) Early in her fertile years (1) Meiosis I and after liberating second
polar bodies
102. Eggs librated from ovary in human is: (2) Meiosis I and before liberating
(1) Secondary oocyte stage second polar bodies
(2) Primary oocyte stage (3) Meiosis II and liberating second polar
(3) Oogonial stage bodies
(4) Mature ovum stage (4) Meiosis II after release of first polar
body
109. Stage of embryo development at which 116. Site of fertilization in mammal is:
implantation occurs in human female is: (1) Ovary (2) Uterus
(1) Morula (2) Zygote (3) Vagina (4) Fallopian tube
(3) Blastocyst (4) Gastrula 117. Acrosome reaction in sperm is triggeres:
(1) Capaciation
110. Identify the stage of sperm formation
(2) Release of zona lysin
during which the cytoplasmic volume of
(3) Influx of Na+
spermatid reduces:
(4) Release of fertilizin.
(1) Spermiogenesis
(2) Spermatidogenesis 118. Part of sperm involved in penetrating
egg membrane is:
(3) Spermatocytogenesis
(1) Tail (2) Acrosome
(4) Spermiation
(3) Middle Piece (4) Centriole
111. Secondary egg membrane is formed by: -
119. If Cowper’s gland is removed, then
(1) Oocyte (2) uterus which of the following would be
(3) oviduct (4) ovary affected?
(1) Sexual attraction
112. At what stage of life is oogenesis (2) Capacitation of sperms
initiated in a human female ?
(3) Copulation and fertilization
(1) At puberty (4) Hardness of penis
(2) During menarch
120. Which one of the following is incorrect ?
(3) During menopause
(1) Fertilization follows capacitation
(4) During embryonic development
(2) Cleavage of fertilized ovum results in
113. The acrosome plays a role in: blastula
(3) Fusion of sperm and ovum occurs in
(1) Fussion of nuclei of gametes
fallopian tube
(2) Motality of sperm
(4) Cleavage leads to increase in the
(3) Penetration of sperm in to ovum mass of protoplasm
(4) All of the above
121. Which of the following enzyme helps
114. The change in a mammalian sperm sperm to penetrate zona pellucida ?
which prepares it to fertilize the ovum is (1) Hyaluronidase
termed: (2) Neuraminidase
(1) Maturation (2) Preparation (3) Acrosin/zonalysin
(3) Capacitation (4) etamorphosis (4) Corona penetrating enzyme

115. Fertilization is: 122. Why do all copulations not lead to

fertilisation and pregnancy ? The root
(1) Union of diploid spermatozoa with
cause is .......
diploid ovum to form diploid zygote
(1) Due to numerous sperms and one
(2) Union of haploid sperm with haploid
ovum
ovum to form haploid zygote
(2) Due to less progesterone
(3) Union of haploid sperm with haploid
(3) Ovum and sperms are not
ovum to form diploid zygote transported simultaneously to the
(4) Union of diploid sperm with haploid ampullary region.
ovum to form triploid zygote (4) Due to non-formation of corpus luteum
123. Intermixing of cytoplasm of sperm and 131. The first movements of the foetus and
egg is known as: – apperance of hair on the head are
(1) Syngamy (2) Karyogamy usually observed during the:
(3) Amphimixis (4) Plasmogamy (1) 3rd month (2) 4th month
(3) 5th month (4) 8th month
124. Clevage starts in zygote:
(1) In Uterus 132. Archenteron is cavity in:
(2) In Fallopian tube (1) Blastula (2) Gastrula
(3) In Vagina (3) Zygote (4) Morula
(4) Cervix
133. Blastopore is the pore of:
125. Which of the following releases inhibin (1) Archenteron (2) Blastocoel
to control spermatogenesis?
(3) Coelom (4) Albumin cavity
(1) Rete testis
(2) Sustentacular cells 134. Morphogenetic movements can be seen
(3) Leydig’s cells (4) Follicular cells in:
(1) Marula (2) Blastula
126. Which of the following characteristics
(3) Gastrula (4) Placenta
does not belong to cleavage ?
(1) Decrease in size of blastomeres. 135. Gastrulation is a process of:
(2) Rapid mitotic cell division. (1) Formation of archenteron
(3) Interphase of very short duration. (2) Migration of prospective
(4) Differention of blastomeres. endomesodermal cells
(3) Differentiation of three primary germ
127. Which hormone is secreted in women
layers
only during the pregnancy?
(4) All of the above
(1) Progesterone (2) hPL
(3) Estrogen (4) Thyroxin 136. Correct sequence in development is:
(1) Fertilization → Zygote → Cleavage
128. In male, penis is covered by a loose fold
→ Morula → Blastula → Gastrula
of skin called as: -
(2) Fertilization → Zygote → Blastula
(1) Foreskin
→ Morula → Cleavage → Gastrula
(2) Urethral meatus
(3) Fertilization → Cleavage → Morula
(3) External genitalia
→ Zygote → Blastula → Gastrula
(4) Fimbriae
(4) Cleavage → Zygote → Fertilization
129. What is true for cleavage ? → Morula → Blastula → Gastrula
(1) Size of embryo increases 137. Stage of embryonic development in
(2) Size of Blastomeres decrease which differentiation of cell occurs:
(3) Size of Blastomeres increase (1) Blastula (2) Morula
(4) Size of embryo decreases (3) Gastrula (4) Neurula

130. Three germ layers are formed during 138. Solid ball of cell produced by repeated
which stage of Embryonic development: cleavage is called:
(1) Morula (2) Blastrula
(1) Gastrula (2) Blastula
(3) Gastrula (4) In any two stages
(3) Morula (4) Neurula
139. Which of the following statements is 147. The 16 cells stage of the human embryo is:
wrong? (1) Smaller than the fertilized egg
(1) Mammary lobes contain clusters
(2) Same size as the fertilized egg
called as alveoli.
(2) The last part of the oviduct is called (3) Two times of the size of the fertilized egg
as ampulla. (4) Four times the size of the fertilized egg
(3) Stroma of ovary is divided into two
zone 148. Match the following and choose the
(4) Uterus is also called as womb. correct
options:
140. In which stage of development the
embryonic cells form the germinal layers Set-I Set-II
by the movement: Embedding of
(1) Morula (2) Blastula A. Trophoblast (i) blastocyst in the
(3) Gastrula (4) Nerula endometrium
Group of the cells that
141. In which phase of menstrual cycle B. Cleavage (ii) would differentiated as
Graafian follicle is transformed into
embryo
corpus luteum?
(1) Proliferative phase Inner cell Outer layer of blastocyst
C. (iii)
(2) Luteal phase mass attached to the endometerium
(3) Growth phase
(4) Follicular phase D. Implantation (iv) Mitotic division of zygote

142. In human embryo the extra embryonic (1) A-ii, B-i, C-iii, D-iv
membrane are formed by: (2) A-iii, B-iv, C-ii, D-i
(1) Inner cell mass (2) Trophoblast (3) A-iii, B-iv, C-i, D-ii
(3) Formative cells (4) Follicles cells (4) A-ii, B-iv, C-iii, D-i
143. During preganancy, the urine of female
would contain: 149. After one month of pregrancy, the
(1) LH (2) Progesterone embryo’s ..A.. is formed. By the end of
(3) FSH (4) HCG the ..B.. month of pregnancy , the foetus
develops limbs and digits. By the end of
144. During fertilization, a sperm comes in
..C.. most of the major organ systems
contact with which layer of the ovum?
(1) Jelly coat are formed for example, the limbs and
(2) Vitelline membrane external genital organs are well-
(3) Perivitelline space developed. By the end of ..D.. the body
(4) Zona pellucida is covered with fine hair, eyelids
separate, and eyelashes are formed.
145. Which germ layer develops first during Here A to D refers to
embryonic development ?
(1) A–heart, B–second, C–first
(1) Ectoderm (2) Mesoderm
trimester, D–second trimester
(3) Endoderm (4) Both (2) and (3)
(2) A–heart, B–second, C–first month,
146. The fertilized egg in human female is D–second month
implanted in the uterus after:
(3) A–heart, B–second, C–first week,
(1) One month of fertilization
D– second week
(2) Two months of fertilization
(3) Three weeks of fertilization (4) A–heart, B–fourth, C–first trimester,
(4) About seven days of fertilization D–second trimester
150. Find out the incorrect match w.r.t. 153. In parturition process, which of the
development in humans: following does not happen:
(1) By the end of 24 weeks – Eye lids (1) Oxytocin Hormone is secreted by
separate and eyelashes are formed posterior pituitory
(2) By the end of 8 weeks – Appearance (2) Relaxin hormone responsible for
of hair on head and first movement narrowing of pelvic cavity
of foetus (3) Progesterone hormone secretion is
(3) By the end of 12 weeks – Limbs and stopped
external genital organs are well (4) Vigorous contractions of the uterus
developed
(4) By the end of 4 weeks – Heart is 154. The expulsion of completely developed
formed foetus from the uterus is known as:
(1) Ovulation (2) Oviposition
151. Placenta is the region where: (3) Gestation (4) Parturition
(1) Foetus is attached to mother by
spermatic cord
155. Which of the following placental
(2) Foetus is provided with mother's
hormone takes over the function of LH
blood
and maintains corpus luteum of
(3) Foetus receives nourishment from
pregnancy ?
mother's blood
(1) Human chorionic somatomammotropin
(4) Foetus is covered by membranes.
(2) Human chorionic corticotropin
152. Villi of human placenta develop from: (3) Human chorionic thyrotropin
(1) Chorion (2) Allantois (4) Human chorionic gonadotropin
(3) Yolk sac (4) Amnion

ANSWER KEY
Que. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
Ans. 3 1 2 1 1 3 1 1 1 1 2 4 4 2 1 1 1 3 1 1 4 3 1 3 2
Que. 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
Ans. 2 4 3 4 1 1 3 4 2 4 4 2 2 4 3 4 2 2 3 3 2 2 1 2 1
Que. 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75
Ans. 3 1 4 3 1 3 3 4 3 4 4 1 3 3 2 3 2 3 2 1 3 4 4 2 3
Que. 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100
Ans. 4 1 4 3 1 4 4 2 4 3 1 3 4 1 4 3 4 4 1 4 3 3 2 2 2
Que. 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125
Ans. 3 1 2 2 3 4 2 2 3 1 4 4 3 3 3 4 2 2 3 4 3 3 4 2 2
Que. 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150
Ans. 4 2 1 2 3 3 2 1 3 4 1 3 3 2 3 2 2 4 4 3 4 2 2 1 2
Que. 151 152 153 154 155
Ans. 3 1 2 4 4
 Exercise - II

1. Fructose is present in the secretion of: 8. Read the following statement carefully
and choose the incorrect statements:
(1) Corpus spongiosum
(1) The secretions of prostate glands
(2) Seminal vesicles also helps in the lubrication of the
(3) Bartholin gland penis.
(2) The stroma of ovary divided into two
(4) Prostate gland
zones – a peripheral cortex and an
inner medulla.
2. The part of fallopian tube closer to
(3) In between seminiferous tubules
ovary: leydig cells and some
(1) Ampula (2) Isthmus immunologically competent cells are
(3) Infundibulum (4) Fundus present.
(4) By the end of the second month of
3. Each testis has how many testicular pregnancy, the foetus develops
limbs and digits.
lobules:
(1) 100 (2) 150 (3) 250 (4) 750 9. Ovulation is:
(1) Releasing of secondary oocyte from ovary
4. The glans penis is covered by a loose (2) Releasing of primary oocyte from ovary
(3) Releasing of polar body
fold of skin is called:
(4) Releasing of graffian follicle
(1) Foreskin (2) Spermatic cord
10. For normal fertility, how many
(3) Gubernaculum (4) Fimbriae percentage of sperm must have normal
shape and size:
5. The fimbriae help in: (1) 50 % (2) 25 % (3) 40 % (4) 60 %
(1) Collection of the ovum after ovulation
11. In which duration of menstrual cycle
(2) Maintain the shape of ovary both LH & FSH attain a peak level:
(3) Provide the path to sperm during (1) In last week
(2) Middle of cycle
fertilization
(3) Initial days of cycle
(4) Release of ovum from ovary. (4) 4th day of cycle

6. Which statement is wrong ? 12. Which statement is not correct ?

(1) In the absence of fertilization, the
(1) Mammary lobes containing clusters
corpus luteum degenerates
of cells called alveoli (2) During pregnancy all events of
(2) Uterus is also called womb menstrual cycle stop
(3) The secretion of LH & FSH decreases
(3) The last part of the oviduct is called
gradually during the follicular phase
Ampulla
(4) The menstrual flow results due to
(4) Stroma of ovary divided into two breakdown of endometrial lining
zones - cortex and medulla
13. In which phase of menstrual cycle
7. Spermatogenesis start at puberty due to Graffian follicle transform as the corpus
significant increase in the secretion of: luteum.

(1) GnRH (2) Ertrogen (1) Luteal (2) Proliferation

(3) Oxytocin (4) Progesterone (3) Follicular (4) Growth

14. Which hormones is essential for 21. Which hormone level reaches peak
maintenance of the endometrium? during the luteal phase of menstrual
(1) FSH (2) LH cycle?
(1) Luteinising hormone
(3) Progesterone (4) Testosterone
(2) Progesterone
(3) FSH
15. Which of the following is an indicator of
(4) Estrogen
normal reproductive phase and extends
between menarche and menopause? 22. Placenta contains:
(1) Only chorionic villi
(1) Menstruation cycle (2) Estrous cycle
(2) Only uterine tissue
(3) Ovulation (4) Implantation (3) Chorionic villi + uterine tissue
(4) Trophoblast + chorionic villi
16. Fertilization takes place at:
23. The average duration of human
(1) Cervix
pregnancy is about nine months which is
(2) Ampullary region of fallopian tube called:
(3) Infundibulum region of fallopian tube (1) Gestation period (2) Parturition
(3) Lactation (4) Implantation
(4) Uterus
24. Parturition is induced by:
17. The embryo with 8 to 16 blastomeres is (1) A complex neuroendocrine mechanism
called: (2) A simple neuroendo crine mechanism
(1) Morula (2) Blastula (3) A neuro exocrine mechanism
(3) Gastrula (4) Foetus (4) A physio-chemical mechanism

25. Which hormon acts on the uterus during

18. During fertilization, a sperm comes in parturition ?
contact with which layer of the ovum. (1) Oxytocin (2) LH
(1) Jelly coat (3) Estrogen (4) Relaxin
(2) Zona pellucida 26. Which gland of female undergo
(3) Vitelline membrane differentiation during pregnancy ?
(4) Perivitelline space (1) Thyroid (2) Mammary
(3) Pituitary (4) Thymus
19. Function of placenta is:
27. Which is correct for colostrum ?
(1) Supply of O2 to embryo (1) It contains severel antibodies
(2) Removal of CO2 produced by the embryo (2) It produced during the last days of
lactation
(3) Produces several hormones
(3) It is a pheromone
(4) All of above (4) It is white in colour

20. The first sign of growing foetus may be 28. Placenta acts as an endocrine tissue and
produces several hormones like:
noticed by:
A.Human chorionic gonadotropin (hCG)
(1) Listening to the heart sound
B. Human placental lactogen (hPL)
carefully through the stethoscope C.Estrogens D.Progesterone
(2) Apperance of hair E. FSH F. LH
(3) Apperance of head (1) A, B, E & F (2) B only
(4) Apperance of eye lids (3) A, B & C (4) A, B, C & D
29. Which of the following group of 30. In mammals the female secondary
hormones are produced in women only sexual characters are developed mainly
during pregnancy ? by the hormone
(1) hCG, hPL relaxin (1) Relaxin
(2) Estrogen, progesterone, hCG (2) Estrogens
(3) Cortison, prolactin, thyroxine (3) Progesterone
(4) Prolactin, progesterone, hCG (4) Gonadotropins

ANSWER KEY
Que. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
Ans. 2 3 3 1 1 3 1 1 1 4 2 3 1 3 1 2 1 2 4 1 2 3 1 1 1
Que. 26 27 28 29 30
Ans. 2 1 4 1 2
 Exercise – III (Previous Year Questions)
(AIPMT 2007) 7. Secretions from which one of the
1. In the human female, menstruation can following are rich in fructose, calcium
be deferred by the administration of: and enzymes ?
(1) FSH only (1) Male accessory glands
(2) LH only (2) Liver
(3) Combination of FSH and LH (3) Pancreas
(4) Combination of estrogen and progesterone (4) Salivary glands
8. Which one of the following statements
(AIPMT 2008) about morula in humans is correct ?
2. In humans, at the end of the first (1) It has more cytoplasm and more
meiotic division, the male germ cells DNA than an uncleaved zygote
differentiate into the:- (2) It has almost equal quantity of
(1) Spermatids cytoplasm as an uncleaved zygote
(2) Spermatozonia but much more DNA
(3) Primary spermatocytes (3) It has far less cytoplasm as well as
(4) Secondary spermatocytes less DNA than in an uncleaved
zygote
(AIPMT 2009)
(4) It has more or less equal quantity of
3. Foetal ejection reflex in human female is
cytoplasm and DNA as in uncleaved
induced by:
zygote
(1) Release of oxytocin from pituitary
(2) Fully developed foetus and placenta 9. The second maturation division of the
(3) Differentiation of mammary glands mammalian ovum occurs:
(4) Pressure exerted by amniotic fluid (1) In the Graafian follicle following the
first maturation division
4. A change in the amount of yolk and its
(2) Shortly after ovulation before the
distribution in the egg will effect: ovum makes entry into the Fallopian
(1) Pattern of cleavage tube
(2) Number of blastomeres produced (3) Until after the ovum has been
(3) Fertilization penetrated by a sperm
(4) Forrmation of zygote (4) Until after nucleus of the sperm has
fused with that the ovum
(AIPMT 2010)
10. Which one of the following statements
5. The part of fallopian tube closest to the
about human sperm is correct ?
ovary is
(1) Acrosome serves no particular function
(1) Ampulla (2) Isthmus
(2) Acrosome has a conical pointed
(3) Infundibulum (4) Cervix
structure used for piercing and
6. Signals from fully developed foetus and penetrating the egg resulting in
placenta ultimately lead to parturition fertilization
which requires the release of: (3) The sperm lysins in the acrosome
(1) Estrogen from placenta dissolve the egg envelope facilitating
(2) Oxytocin from maternal pituitary fertilization
(3) Oxytocin from foetal pituitary (4) Acrosome serves as a sensory
(4) Relaxin from placenta structure leading the sperm towards
the ovum
11. Sertoli cells are found in: (1) (I) Perimetrium, (II) Myometrium, (III)
(1) Pancreas and secrete cholecystokinn Fallopian tube
(2) Ovaries and secrete progesterone
(2) (II) Endometrium, (III) Infundibulum,
(3) Adrenal cortex and secrete adrenaline
(4) Seminiferous tubules and provide (IV) Fimbriae
nutrition to germ cells (3) (III) Infundibulum, (IV) Fimbriae, (V)
12. Vasa efferentia are the ductules leading Cervix
from: (4) (IV) Oviducal funnel, (V) Uterus, (VI)
(1) Epididymis to urethra Cervix
(2) Testicular lobules to Rete testis
(3) Rete testis to epididymis 17. The testes in humans are situated
(4) Vas deferens to epididymis outside the abdominal cavity inside a
13. Seminal plasma in human males is rich pouch called scrotum. The purpose
in:
served is for
(1) Ribose and potassium
(2) Fructose and calcium (1) Providing a secondary sexual feature
(3) Glucose and calcium for exhibiting the male sex
(4) DNA and testosterone (2) Maintaining the scrotal temperature
14. The first movements of the foetus and lower than the internal body
appearance of hair on its head are temperature
usually observed during which month of
(3) Escaping any possible compression
pregnancy?
(1) Third month (2) Fourth month by the visceral organs
(3) Fifth month (4) Sixth month (4) Providing more space for the growth

15. In human female the blastocyst: of epididymis

(1) Forms placenta even before
18. If for some reason, the vasa efferentia in
implantation
(2) Gets implanted into uterus 3 days the human reproductive system get
after ovulation blocked, the gametes will not be
(3) Gets nutrition from uterine transported from:
endometrial secretion only after
(1) Vagina to uterus
implantation
(4) Gets implanted in endometrium by (2) Testes to epididymis
the trophoblasts cells (3) Epididymis to vas deferens
(4) Ovary to uterus
(AIPMT 2011)
16. The figure given below depicts a 19. What happens during fertilisation in
diagrammatic sectional view of the humans after many sperms reach close
female reproductive system of humans.
to the ovum ?
Which one set of three parts out of I -
IV have been correctly identified ? (1) Cells of corona radiata trap all the
(AIPMT 2011) sperms except one
(2) Only two sperms nearest the ovum
penetrate zona pellucida
(3) Secretions of acrosome helps one
sperm enter cytoplasm of ovum
through zona pellucida
(4) All sperm except the one nearest to
the ovum lose their tails
20. Given below is an incomplete table 24. Which one of the following statements
about certain hormones, their source is false in respect of viability of
glands and one major effect of each on mammalian sperm?
the body in humans. Identify the correct (1) Sperms must be connected in a
option for the three blanks A, B and C: - thick suspension
Gland Secretion Effect on Body (2) Sperm is viable for only up to 24 hours
A Oestrogen Maintenance of secondary (3) Survival of sperm depends on the pH
sexual characters of the medium and is more active in
Alpha Cells of is B alkaline medium
Raises blood sugar level
lets of Langerhans (4) Viability of sperm is determined by
Anterior C Over secretion its motality.
pituitary leads to gigantism
(AIPMT Mains 2012)
Options
A B C 25. The secretory phase in the human
(1) Ovary Insulin Vasopressin menstrual cycle is also called:
(2) Ovary Insulin Calcitonin (1) Follicular phase and lasts for about 13 days
(3) Ovary Glucagon Growth hormone (2) Luteal phase and lasts for about 6 days
(4) Placenta Glucagon Calcitonin (3) Follicular phase lasting for about 6 days
(4) Luteal phase and lasts for about 14 days
(AIPMT 2012)
(NEET 2013)
21. The Leydig cells as found in the human
body are the secretory source of: 26. Which one of the following is not the
(1) Glucagon (2) Androgens function of placenta ? It:
(3) Progesterone (4) Intestinal mucus (1) Secretes estrogen
(2) Facilitates removal of carbon dioxide
22. In a normal pregnant woman, the and waste material from embryo
amount of total gonadotropin activity (3) Secretes oxytocin during parturition
was assessed. The result expected was: (4) Facilitates supply of oxygen and
(1) High level of circulating HCG to nutrients to embryo
stimulate estrogen and progesterone
synthesis 27. Menstrual flow occurs due to lack of:
(2) High level of circulating FSH and LH (1) FSH
in the uterus to stimulate (2) Oxytocin
implantation of the embryo (3) Vasopressin
(3) High level of circulating HCG to (4) Progesterone
stimulate endometrial thickening
28. What is the correct sequence of sperm
(4) High level of FSH and LH in uterus to
formation?
stimulate endometrial thickening
(1) Spermatogonia, spermatocyte,
spermatozoa, spermatid
23. Signals for parturition originate from:
(2) Spermatogonia, spermatozoa,
(1) Fully developed foetus only
spermatocyte, spermatid
(2) Both placenta as well as fully
(3) Spermatogonia, spermatocyte,
developed foetus
spermatid, spermatozoa
(3) Oxytocin released from maternal
(4) spermatid, spermatocyte,
pituitary
spermatogonia, spermatozoa
(4) Placenta only
 (AIPMT 2013) 35. Which of the following cells during
29. The main function of mammalian gametogenesis is normally diploid ?
corpus luteum is to produce: (1) Secondary spermatocyte
(1) Extrogen only (2) Primary polar body
(2) Progesterone (3) Spermatid
(3) Human chorionic gonadotropin (4) Spermatogonia
(4) Relaxin only
(Re-AIPMT 2015)
(AIPMT 2014) 36. Ectopic pregnancies are referred to as:
(1) Pregnancies terminated due to
30. The shared terminal duct of the hormonal imbalance
reproductive and urinary system in the (2) Pregnancies with genetic abnormality
human male is: (3) Implantation of embryo at site other
(1) Urethra than uterus
(2) Ureter (4) Implantation of defective embryo in
(3) Vas deferens the uterus
(4) Vasa efferentia
37. Which of the following events is not
associated with ovulation in human
31. Select the correct option describing
female?
gonadotropin activity in a normal
(1) LH surge
pregnant female:
(2) Decrease in estradiol
(1) High level of FSH and LH stimulates (3) Full development of Graafian follicle
the thickening of endometrium. (4) Release of secondary oocyte
(2) High level of FSH and LH facilitate
implantation of the embryo. 38. In human females, meiosis-II is not
(3) High level of hCG stimulates the completed until:
synthesis of estrogen and (1) Birth
(2) Puberty
progesterone.
(3) Fertilization
(4) High level of hCG stimulates the
(4) Uterine implantation
thickening of endometrium.
39. Which of the following layers in an antral
(AIPMT 2015)
follicle is acellular?
32. Hysterectomy is surgical removal of: (1) Zona pellucida (2) Granulosa
(1) Mammary glands (2) Uterus (3) Theca (4) Stroma
(3) Prostate glands (4) Vas-deference (NEET 2016)
40. Fertilization in humans is practically
33. Which of these is not an important
feasible only if:
component of initiation of parturition in
(1) The sperms are transported into
humans ? vagina just after the release of ovum
(1) Release of prolactin in fallopian tube
(2) Increase in estrogen and (2) The ovum and sperms are
progesterone ratio transported simultaneously to
(3) Synthesis of prostaglandins ampullary isthmic junction of the
(4) Release of oxytocin fallopian tube
(3) The ovum and sperms are transported
34. Capacitation refers to changes in the: simultaneously to ampullary - isthmic
(1) Sperm after fertilization junction of the cervix.
(2) Sperm before fertilization (4) The sperms are transported into
(3) Ovum before fertilization cervix within 48 hrs of release of
(4) Ovum after fertilization ovum in uterus.
41. Select the incorrect statement: 46. Identify the correct statement on
(1) FSH stimulates the sertoli cells 'inhibin':-
which help in spermiogenesis (1) Inhibits the secretion of LH, FSH and
Prolactin.
(2) LH triggers ovulation in ovary
(2) Is produced by granulose cells in
(3) LH and FSH decrease gradually ovary and inhibits the secretion of FSH.
during the follicular phase (3) Is produced by granulose cells in
(4) LH triggers secretion of androgens ovary and inhibits the secretion of LH.
from the Leydig cells (4) Is produced by nurse cells in testes
and inhibits the secretion of LH.
42. Which of the following is incorrect (NEET 2017)
regarding vasectomy ?
(1) Vasa deferentia is cut and tied 47. Capacitation occurs in:
(1) Rete testis
(2) Irreversible sterility (2) Epididymis
(3) No sperm occurs in seminal fluid (3) Vas deferens
(4) No sperm occurs in epididymis (4) Female Reproductive tract

43. Which of the following dipicts the correct 48. GnRH, a hypothalamic hormone, needed
in reproduction, acts on:
pathway of transport of sperms ?
(1) anterior pituitary gland and
(1) Rete testis → Vas deferens → stimulates secretion of LH and FSH.
Efferent ductules → Epididymis (2) posterior pituitary gland and
(2) Efferent ductules → Rete testis → stimulates secretion of oxytocin and FSH.
(3) posterior pituitary gland and
Vas deferens → Epididymis
stimulates secretion of LH and relaxin.
(3) Rete testis → Efferent ductules → (4) anterior pituitary gland and
Epididymis → Vas deferens stimulates secretion of LH and
(4) Rete testis → Epididymis → Efferent oxytocin.
(NEET 2018)
ductules → Vas deferens
49. Hormones secreted by the placenta to
maintain pregnancy are:
44. Match Column-I with Column-II and
(1) hCG, hPL, progestogens, prolactin
select the correct option using the (2) hCG, hPL, estrogens, relaxin, oxytocin
codes given below: (3) hCG, hPL, progestogens, estrogens
(4) hCG, progestogens, estrogens,
Column I Column II glucocorticoids
a Mons pubis i Embryo formation
50. The difference between spermiogenesis
b Antrum ii Sperm and spermiation is:
Female external (1) In spermiogenesis spermatids are
c Trophectoderm iii
genitalia formed, while in spermiation
d Nebenkern iv Graffian follicle spermatozoa are formed.
Codes: (2) In spermiogenesis spermatozoa are
formed, while in spermiation
a b c d
spermatids are formed.
(1) iii i iv ii (3) In spermiogenesis spermatozoa from
(2) i iv iii ii sertoli cells are released into the
(3) iii iv ii i cavity of seminiferous tubules, while
(4) iii iv i ii in spermiation spermatozon are
formed.
45. Several hormones like hCG, hPL, (4) In spermiogenesis spermatozoa are
formed, while in spermiation
estrogen, progesterone are produced by:
spermatozoa are released from
(1) Fallopian tube (2) Pituitary sertoli cells into the cavity of
(3) Ovary (4) Placenta seminiferous tubules.
51. Match the items given in Column I with (NEET 2020)
those in column II and select the correct
option given below: 55. Which of the following hormone levels
Column-I Column-II will cause release of ovum (ovulation)
Breakdown of from the graffian follicle ?
a. Proliferative Phase i. endometrial (1) High concentration of Progesterone
lining (2) Low concentration of LH
b. Secretory Phase ii. Follicular Phase (3) Low concentration of FSH
c. Menstruation iii. Luteal Phase (4) High concentration of Estrogen
a b c 56. Meiotic division of the secondary oocyte
(1) iii i ii
(2) iii ii i is completed:
(3) ii iii i (1) At the time of copulation
(4) i iii ii (2) After zygote formation
(NEET 2019) (3) At the time of fusion of a sperm with
52. Select the correct sequence for an ovum
transport of sperm cells in male (4) Prior to ovulation
reproductive system.
(1) Seminiferous tubules → Vasa 57. Match the following columns and select
efferetia Epididymis → Inguinal the correct option.
canal → Urethra
Column-I Column-II
(2) Testis → Epididymis → Vasa
(a) Placenta (i) Androgens
efferentia → Vas deferens →
Ejaculatory duct → Inguinal canal → (b) Zona pellucida (ii) HumanChoronic
Urethra → Urethral meatus Gonadotropin
(3) Testis → Epididymis → Vasa (hCG)
efferentia → Rete testis → Inguinal
canal → Urethra (c) Bulbo-urethral (iii) Layer of the
(4) Seminiferous tubules → Rete testis
glands ovum
→ Vasa efferentia → Epididymis →
Vas deferens Ejaculatory duct →
Urethra → Urethral meatus (d) Leydig cells (iv) Lubrication of
the Penis
53. Extrusion of second polar body from egg
nucleus occurs: (a) (b) (c) (d)
(1) before entry of sperm into ovum (1) (i) (iv) (iii) (iv)
(2) simultaneously with first cleavage (2) (iii) (ii) (iv) (i)
(3) after entry of sperm but before (3) (ii) (iii) (iv) (i)
fertilization
(4) (iv) (iii) (i) (ii)
(4) after fertilization
(NEET 2020 (Covid-19))
(NEET(UG) 2019 (Odisha)) 58. In human beings, at the end of 12 weeks
54. No new follicles develop in the luteal
(first trimester) of pregnancy, the
phase of the mensturual cycle because:
(1) Follicles do not remain in the ovary following is observed: -
after ovlation (1) Eyelids and eyelashes are formed
(2) FSH levels are high in the luteal (2) Most of the major organ systems are
phase formed
(3) LH levels are high in the luteal phase
(3) The head is covered with fine hair
(4) Both FSH and LH levels are low in
the luteal phase (4) Movement of the foetus
59. Select the correct option of haploid cells (NEET 2022)
from the following groups: – 64. At which stage of life the oogenesis
(1) Primary oocyte, Secondary oocyte, process is initiated?
Spermatid (1) Puberty
(2) Secondary spermatocyte, First polar (2) Embryonic development stage
(3) Birth
body, Ovum
(4) Adult
(3) Spermatogonia, Primary spermatocyte,
Spermatid 65. Which of the following statements are
(4) Primary spermatocyte, Secondary true for spermatogenesis but do not
spermatocyte, Second polar body
hold true for Oogenesis?
(a) It results in the formation of haploid
60. Match the following columns and select
gametes
the correct option: –
(b) Differentiation of gamete occurs
Column - I Column - II
after the completion of meiosis
Human chorionic
(a) Ovary (i) (c) Meiosis occurs continuously in a
Gonadotropin
mitotically dividing stem cell
Estrogen &
(b) Placenta (ii) population
Progesterone
(d) It is controlled by the Luteinising
(c) Corpus luteum (iii) Androgens
hormone (LH) and Follicle
(d) Leyding cells (iv) Progesterone Only
Stimulating Hormone (FSH) secreted
(1) (a)–(iv), (b)–(iii), (c)–(ii), (d)–(i)
by the anterior pituitary
(2) (a)–(i), (b)–(ii), (c)–(iii), (d)–(iv)
(3) (a)–(i), (b)–(iii), (c)–(ii), (d)–(iv) (e) It is initiated at puberty
(4) (a)–(ii), (b)–(i), (c)–(iv), (d)–(iii) Choose the most appropriate answer
from the options given below:
(NEET 2021) (1) (c) and (e) only
(2) (b) and (c) only
61. Receptors for sperm binding in (3) (b), (d) and (e) only
mammals are present on: (4) (b), (c) and (e) only
(1) Corona radiata
(2) Vitelline membrane 66. Given below are two statements :
(3) Perivitelline space Statement I :
(4) Zona pellucida The release of sperms into the
seminiferous tubules is called
62. Which of these is not an important spermiation.
component of initiation of parturition in Statement II : Spermiogenesis is the
humans? process of formation of sperms from
(1) Increase in estrogen and spermatogonia.
progesterone ratio In the light of the above statements,
choose the most appropriate answer
(2) Synthesis of prostaglandins
from the options given below :
(3) Release of Oxytocin
(1) Both Statement I and Statement II
(4) Release of Prolactin
are correct
(2) Both Statement I and Statement II
63. Which of the following secretes the
are incorrect
hormone, relaxin, during the later phase (3) Statement I is correct but
of pregnancy? Statement II is incorrect
(1) Graafian follicle (2) Corpus luteum (4) Statement I is incorrect but
(3) Foetus (4) Uterus Statement II is correct
 (Re-NEET 2022) 69. Given below are two statements : one is
labelled as Assertion (A) and the other is
67. Arrange the components of mammary labelled as Reason (R).
gland. (from proximal to distal) Assertion (A) :
(a) Mammary duct During pregnancy the level of thyroxine
(b) Lactiferous duct is increased in the maternal blood.
(c) Alveoli Reason (R) :
(d) Mammary ampulla Pregnancy is characterised by metabolic
(e) Mammary tubules changes in the mother.
Choose the most appropriate answer In the light of the above statements,
from the options given below : choose the most appropriate answer
(1) (c) → (a) → (d) → (e) → (b) from the options given below :
(2) (b) → (c) → (e) → (d) → (a) (1) Both (A) and (R) are correct and (R) is
the correct explanation of (A)
(3) (c) → (e) → (a) → (d) → (b)
(2) Both (A) and (R) are correct but (R) is
(4) (e) → (c) → (d) → (b) → (a)
not the correct explanation of (A)
68. How many secondary spermatocytes are (3) (A) is correct but (R) is not correct
required to form 400 million spermatozoa ? (4) (A) is not correct but (R) is corrects
(1) 50 million (2) 100 million
(3) 200 million (4) 400 million

ANSWER KEY
Que. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
Ans. 4 4 2 1 3 2 1 2 3 3 4 3 2 3 4 3 2 2 3 3 2 1 2 2 4
Que. 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
Ans. 3 4 3 2 1 3 2 1 2 4 3 2 3 1 2 3 4 3 4 4 2 4 1 3 4
Que. 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69
Ans. 3 4 3 4 4 3 3 2 2 4 4 4 2 2 4 3 3 3 1