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Zoology
MEDICAL ENTRANCE ONE YEAR BATCH – 2019_20
Date: 26.10.2019
1. The period from birth to the natural death of an (c) Genetic make up
organism represents -
(d) All of the above factors
(a) Reproductive phase (b) Life cycle
8. Which of the following is a false statement? ,-
(c) Life span (d) Life style
(a) All organisms have evolved similar mechanism
2. No individual is immortal except- to multiply and produce offsprings
(a) Single celled organisms (b) Asexual reproduction is uniparental
(b) Green plants (c) Sexual reproduction is biparental
(c) Sponges (d) In asexual reproduction no fertilization occurs
(d) Drones 9. Individuals of a clone-
3. Find but the correct statement - (a) Are genetically similar but morphologically
different
(a) Life spans of organisms are necessarily
correlated with their sizes (b) Are morphologically similar but genetically
different
(b) The sizes of crows and parrots are not very
different, so their life spans are almost similar (c) Are morphologically and genetically similar
(c) A peepal tree has much shorter life span as (d) Are genetically and phenotypically different
compared to a mango tree
10. Clone is the product of-
(d) Reproduction is essential for continuity of
(a) Sexual reproduction
species on the earth
(c) Amphimixis
4. Which of the following sequences of organisms is
correct in respect of life spans? 11. Asexual reproduction is common -
(a) Banyan tree > Parrot > Elephant > Crocodile > (a) Among single celled organisms only
Crow
(b) Among plants only
(b) Crow > Crocodile > Elephant > Parrot > Banyan
(c) Among single celled organisms, plants and all
tree
animals
(c) Banyan tree > Elephant > Crocodile > Parrot > (d) Among single celled animals, plants and animals
Crow with simple organisations
(d) Crow > Parrot > Elephant > Crocodile > Banyan 12. In Monerans (e.g. bacteria) and Protists (Amoeba,
tree Paramecium, Euglena, etc) asexual reproduction
5. Find out the organism with highest life span - occurs by-
(a) Tortoise (b) Horse (a) Budding (b) Multi fission
(c) Dog (d) Fruit fly (c) Binaryfission (d) Amphimixis
6. Life span of tortoise is - 13. Among the following which one is not a method of
asexual reproduction-
(a) 100 -150 years
(a) Budding (e.g. yeast) (b) Layering
(b) 250 years
(c) Sowing (d) Binary fission
(c) 20 years
(d) 1 year
7. "How organisms reproduce" - depends upon - 14.
(a) Habitat of organisms
(b) Internal physiology of organisms

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The above figure refers to which type of reproduction 19. A. The plant was introduced in India because of its
in yeast? beautiful flowers and shape of leaves
(a) Binary fission (b) Budding B. It can propagate vegetatively at a phenomenal
rate and spread all over water body in a short
(c) Layering (d) Fusion
period
15. In animals and other simple organisms uniparental
C. It is very difficult to get rid off these plants A to C
reproduction is called _____________ reproduction,
points are related to -
in plant it is called _______ reproduction
(a) Dahlia (b) Water hyacinth
(a) vegetative, asexual
(c) Azolla (water fern) (d) Mosses
(b) Asexual, vegetative
20. Which of the following statements is false?
(c) Parthenogenetic, Amphimictic
(a) Asexual reproduction is simpler than sexual
(d) Amphimictic, Apomictic
reproduction
16. Which of the following is not vegetative propagule?
(b) Asexual reproduction occurs by fission, budding
(a) Rhizome and sucker and fragmentation
(b) Tuber and off set (c) In most of the animals both asexual and sexual
modes of reproduction are found
(c) bulbil (e.g. in Agave), leaf buds, bulb
(d) Vegetative and sexual modes of reproduction
(d) Antherozoid are exhibited by the higher plants
17. Identify A to D in given diagrams showing asexual 21. Some organisms are capable of asexual or sexual
reproductive structure reproduction. Under favourable conditions,
reproduction proceeds asexually. When conditions
become more stressful reproduction switches to a
sexual mode. Why?
(a) Sexual reproduction is simple and more rapid
allowing larger numbers of offspring to be
produced
(b) Sexual reproduction requires two separate
individuals, who can mutually provide nutrient
(a) A-Zoogamete, B-Conidia, C-Bud, D-Gemmule support during stress
(b) A- Zoospore, B - Conidia, C - Bud, D - Gemmule (c) Sexual reproduction produces individuals with
(c) A- Zoospore, B - Conidiosporangium, C - Bud, D new combinations of recombined chromosomes
- Gemmule increasing diversity

(d) A-Aplanospore, B - Conidia, C - Bud, D - (d) Asexual reproduction requires more energy
Gemmule 22. The fastest method to obtain clones is through -
18. Examine the figures given below and select the right (a) induced mutation
options out of (a - d); in which all the 4 items A, B, C
and D are identified correctly (b) parasexual hybridization
(c) parthenogenesis
(d) vegetative reproduction
23. Which of the following is cultivated through vegetative
propagation -
(a) Potato and Sugarcane
(b) Banana and Ginger
A B C D (c) Dahlia and Rose
(a) Tuber Rhizome Bulb Leaf buds (d) All
(b) Offset Sucker Stolon Leaf buds 24. The site of origin of the new plantlets in potato, dahlia,
(c) Offset Sucker Stolon Leaf buds ginger and banana is –

(d) Tuber Rhizome Bulbil Leaf buds (a) Floral buds present on stem
(b) Internodes of modified stem
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(c) Nodes of modified stem (d) Syngamy  Gametogenesis  Zygote 

Embryogenesis
(d) Adventitious buds present on root
30. Select the correct sequence from the following.
25. Internal fertilization occurs in -
(a) Many fungi I. Juvenile phase  Senescent phase 
Reproductive phase
(b) Reptiles; mammals
II. Juvenile phase  Reproductive phase 
(c) Bryophytes, pteridophytes, gymnosperms, Senescent phase
angiosperms
III. Reproductive phase  Juvenile phase 
(d) AII Senescent phase
26. Which of the following is false about external IV. Vegetative phase Reproductive phase 
fertilization? Senescent phase
(a) Organisms showing external fertilization exhibit (a) I and II (b) I and IV
great synchrony between the sexes and release
gametes (c) III and IV (d) II and IV
(b) Gametes are produced in large number in water 31. Which of the following plants do not show clear cut
to enhance the chances of fertilization vegetative, reproductive and senescent phase?
(c) A large number of gametes are wasted (a) Perennial plants (b) Annual plants
(d) A major advantage is that the offsprings are (c) Biennial plants (d) Either b or c
protected from predators and there is a great 32. Which of the following plants exhibits unusual
chance of their survival upto adult hood. flowering phenomenon -
27. Which of the following is false about internal (a) Mango and Litchi (b) Mango and Maize
fertilization?
(c) Litchi and Pea
I. Male gamete is motile
(d) Bamboo species and Strobilanthus species
II. Male gametes are non-motile
33. I. Bambo species flower only once in their life time,
III. Male gametes are produced in large number generally after 50 - 100 years, produce large
IV. Male gametes are produced in small number number of fruits and die.
V. There is a significant reduction in the number of II. In animals the juvenile phase is followed by
eggs produced morphological and physiological changes prior to
active reproductive behaviour.
VI. In seeded plants non-motile male gametes are
carried to female gamete by pollen tubes III. The reproductive phase is of same duration in all
organisms.
(a) I, III, V, VI (b) III, IV
IV. Juvenile phase is the period of growth between
(c) II.IV (d) V, VI the birth of an individual till it reaches
28. Which of the following is correct? reproductive maturity.

(a) Asexual reproduction is an elaborate, complex V. In plants juvenile phase is also called vegetative
and slow process as compared to sexual phase. Which of the following statements is false
reproduction (a) I (b) II
(b) Cockroach is bisexual (c) lll (d) V
(c) Strobilanthus kunthiana (neelakuranji) flowers 34. Which of the following is correct about Strobilanthus
every year in June kunthiana?
(d) Date palm and Papaya are dioecious plant (a) It flowers once in 12 years.
29. Select the correct sequence from the following - (b) The plant came to flower last time in September-
(a) Gametogenesis  Syngamy  Zygote  October 2006.
Embryogenesis (c) Its mass flowering converted large hilly tracts of
(b) Gametogenesis  Syngamy  Embryogenesis Kerala, Karnataka and Tamil Nadu into blue
 Zygote stretches that attracted a large number of
tourists
(c) Zygote Embryogenesis  Gametogenesis
(d) AII

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35. Which of the following are seasonal breeders?

(a) frogs (b) Birds
(c) Lizards (d) AII 42.
36. Birds in captivity (as in poultry farms) can be made to
lay eggs throughout the year. In this case laying eggs
is -
(a) Related to reproduction and a commercial Identify the events (A, B, D and E) in life of general
exploitation for human welfare. reproduction -

(b) Neither related to reproduction nor a commercial (a) A- Gamete transfer, B - Gametogeneis, D -
exploitation for human welfare. Zygote formation, E - Embryogenesis

(c) Not related to reproduction but a commercial (b) A- Gametogeneis, B - Gamete transfer, D -
exploitation for human welfare. Zygote formation, E - Embryogenesis

(d) Related to reproduction but not a commercial (c) A- Gametogeneis, B - Zygote formation, D -
exploitation for human welfare. Gamete transfer, E - Embryogenesis

37. Oestrus cycle is seen in - (d) A- Gametogeneis, B - Gamete transfer, D -

Embryogenesis, E - Zygote formation A B C
(a) Cows and sheep
(b) Rats and deers
(c) Dogs and tiger
(d) All 43.
38. Menstrual cycle is reported in -
(a) Only humans (b) Only apes
(c) Only monkey
Identify gametes (A, B and C) respectively -
(d) Primates like humans, apes and monkey
(a) Heterogametes, isogametes, Homogametes
39. Many mammals, especially in natural, wild conditions
are - (b) Isogametes, homogametes, heterogametes
(a) Continuous breeders (c) Homogametes, isogametes, heterogametes
(b) Seasonal breeders. (d) Homo/Isogametes, heterogametes,
heterogametes
(c) Both continuous and seasonal breeders
44. In a majority of sexually reproducing organisms, the
(d) Very much disease sensitive gametes are -
40. The parameter(s) of senescence or old age is / are – (a) Isogametes (b) Homogametes
(a) End of the reproductive phase (c) Hemigametes (d) Heterogametes
(b) Concomitant change in body (like slowing 45. In heterogamous organisms the male gamete and
metabolism) female gametes are called respectively -.
(c) Failure of metabolism decreases (a) Spermatogonia, oogonia
(d) a and b (b) Spermatid, ootid
41. Which of the following regulates the reproductive (c) Antherozoid (sperm), Egg (ovum)
processes and the associated behavioural
expressions of organisms? (d) Sperm and oospore
(a) Hormones 46. Meiosis -
(b) Environmental factors (a) does not take place in organisms showing
asexual reproduction only
(c) Abiotic components
(b) takes place in sexually reproducing haploid
(d) Interaction between hormones and organism
environmental factors
(c) takes place in sexually reproducing diploid
organism

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(d) all of the above are correct (a) 2n, 2n, n, 2n, n, 2n
47. In which of the following water is essential for (b) 2n, 2n, n, n, n, 2n
fertilization -
(c) 2n, n, n, n, n, n
(a) Algae (b) Bryophytes
(d) 2n, 2n, n, 2n, 2n, 2n
(c) Pteridophytes (d) AII
56. Animals which give birth to young ones are said to be
48. In majority of organisms male gamete is _________
(a) Viviparous (b) Amphibious
and female gamete is __________
(c) Coelomates (d) Oviparous
(a) Motile, motile
57. Which of the following statements is true about water
(b) Non-motile, non-motile
hyacinth?
(c) Non-motile, motile
(a) It gives useful products to be used in medicine
(d) Motile, stationary (non-motile)
(b) It is a marine plant
49. In flowering plants both male and female gametes are
(c) It takes oxygen from water which causes death
non-motile. The method to bring them together for
of fishes
fertilization is
(d) It is being cultivated in sea water for biogas
(a) Water only (b) Air only
58. Monoecious plant of Chara shows occurrence of
(c) Pollination (d) Apomixis
(a) Stamen and carpel on the same plant
50. Reptiles and birds are -
(b) Upper antheridium and lower oogonium on the
(a) Oviparous (b) Viviparous
same plant
(c) Ovoviviparous
(c) Upper oogonium and lower antheridium on the
(d) Viviparous and oviparous respectively same plant
51. Which of the following is viviparous? (d) Antheridiophore and archegoniophore on the
same plant
(a) Reptiles (b) Frog
59. Menstrual cycle is characteristic to
(c) All mammals (d) Majority of mammals
1. Most seasonal breeders
52. In which of the following fertilized eggs are covered
by hard calcareous shell? 2. Human females
(a) Frog (b) Reptiles and birds 3. Old world monkeys and apes
(c) Mammals (d) Frog and Toad 4. Cows
53. Find out the incorrect statement(s) - (a) 2, 3, 4 (b) 2, 3
(a) The chances of survival of young ones are (c) 3, 4 (d) 1, 2
greater in viviparous animals than in oviparous
60. Mark the statements as True (T) or Fals(F)
animals
respectively.
(b) In Datura, tomato, etc. sepals remain attached
I. Reproduction takes place in juvenile stage of life
even after fertilization
cycle.
(c) Asexual reproduction is better than sexual
II. Eyes of potato tuber are condensed internode.
reproduction
III. During embryogenesis zygote undergoes cell
(d) AII
division and cell differentiation.
54. Offsprings of oviparous animals are at greater risk as
IV. Sexual reproduction is complex and elaborate
compared to offsprings of viviparous animals because
process.
(a) Proper embryonic care and protection is lesser
(a) T, F, T, F (b) F, T, T, F
(b) Embryo is not developed
(c) F, F, T, T (d) T, T, F, F
(c) Progenies are with more variation
61. The number of chromosomes in meiocyte (2n) in
(d) Progenies are larger apple is
55. Ploidy of ovary, anther, egg, pollen, male gamete and (a) 24 (b) 380
zygote are respectively -
(c) 34 (d) 20

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62. The chromosome number in meiocyte is 34. The I. Organisms like Yeasf and Planaria reproduce
organism could be asexually by means of budding
(a) Ophioglossum (b) Dog II. True regeneration is observed in Hydra
(c) Onion (d) Apple III. Protonema of mosses multiply by fragmentation.
63. Which of the following pairs is not correctly matched? IV. In unicellular organisms like bacteria, algae and
Amoeba, reproduction is synonymous with
Mode of reproduction Example
growth, i.e. increase in number of cells.
(a) Binary fission Sargassum
(a) I and II are correct
(b) Conidia Penicillium
(b) II and III are correct
(c) Offset Water hyacinth
(c) III and IV are correct
(d) Rhizome Banana
(d) II and IV are correct
64. Which one of the following generates new genetic
70. Which of the following is incorrect?
combinations leading to variation ?
I. Gemmules, Gametes, Gonads and Genitalia are
(a) Sexual reproduction
connected to asexual reproduction.
(b) Nucellar polyembrybny
II. Bacteria, fungi and lower plants survive during
(c) Vegetative reproduction adverse conditions by formation of thick-walled
spores.
(d) Parthenogenesis
III. Greekword 'sexus' means Union.
65. Some plants where flowering occurs more than once,
the interflowering period is known as: IV. Seedless fruits in Banana are produced through
parthenogenesis.
(a) Juvenile phase
V. Stem cuttings are commonly used in the
(b) Vegetative phase propagation of rose.
(c) Mature phase (a) only I (b) II and III
(d) Senescent phase (c) III and IV (d) IV and V
66. All of the following could be considered advantages of 71. Which of the following is incorrect?
asexual reproduction in plants EXCEPT.
I. Bryophyllum and Kalanchoe can be vegetatively
(a) success in a stable environment propagated by leaf segments
(b) increased agricultural productivity II. Mango and Guava are propagated through
(c) increased ability to adapt to change grafting.
(d) ability to clone an exceptional plant III. Individual of clone have same height.
67. How many plants in the list given below are IV Roots are used in the vegetative propagation of
polycarpic? sweet potato.
Wheat, Rice, Maize, Bamboo, Mango, Litchi, Guava, V Estrus cycle is found in mammalian females
Lemon, Oranges. other than primates.
(a) Six (b) Three (a) I and II (b) Only III
(c) Four (d) Five (c) II and IV (d) IV and V
68. Find out correct order of vegetative propagules of 72. Which is incorrect?
plants like Potato, Ginger, Agave, Bryophyllum and (a) Sowing is not a method of vegetative
Water Hyacinth propagation.
(a) Offset, bulbil, leaf bud, rhizome and eyes (b) Estrous cycle is indication of breeding period.
(b) Leaf bud, bulbil, offset, rhizome and eyes (c) External water is required for fertilization of
(c) Eyes, rhizome, bulbil, leaf bud and offset spermatophytes.
(d) Rhizome, bulbil, leaf bud, eyes and offset (d) Banana is multiplied by rhizome.
69. Consider the following statements with respect to 73. An example of parthenogenesis in the development of
reproduction in the lower living organisms fruit is the one
(a) With viable seeds after fertilization
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(b) With viable seeds after pollination 76. How many eggs will be formed from an ovary of a
woman, in absence implantation of an embryo?
(c) With viable seeds without fertilization
(a) 12 (b) 06
(d) Without seeds after pollination
(c) 24 (d) 48
74. Endogenous budding occurs in
77. Which tissue is required to be present in between
(a) Hydra (b) Marine sponge
stock and scion during grafting?
(c) Fresh water sponge (d) Obelia
(a) Xylem (b) Phloem
75. What type of fruit will be produced by fixing the stock
(c) Meristem (d) Parenchyma
of sour juice producing branch on scion of plant
having sweet branch? 78. Where does maturity is observed in the sporophytic
stage of the plants?
(a) Sweet and fibrous (b) Sweet and juicy
(a) lngemina (b) In primary structures
(c) Sour and juicy (d) Sour and fibrous
(c) In sporophylls (d) In eggs.


ANSWER KEY
1. C 9. C 17. B 25. D 33. C 41. D 49. C 57. C 65. C 73. C

2. A 10. D 18. D 26. D 34. D 42. B 50. A 58. C 66. C 74. C

3. D 11. D 19. B 27. C 35. D 43. D 51. D 59. B 67. D 75. C

4. A 12. C 20. C 28. D 36. C 44. D 52. B 60. C 68. C 76. B

5. A 13. C 21. C 29. A 37. D 45. C 53. C 61. C 69. C 77. B

6. A 14. B 22. D 30. D 38. D 46. D 54. A 62. D 70. A 78. B

7. D 15. B 23. D 31. A 39. B 47. D 55. B 63. A 71. B

8. A 16. D 24. C 32. D 40. D 48. D 56. A 64. A 72. C

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