PYQ Evolution
PYQ Evolution
22. Which of the following structure is             28. The process by which organisms with
homologous to the wing of a bird?                   different evolutionary history evolve similar
    a) Hindlimb of rabbit                           phenotypic adaptations in response to a
    b) Flipper of whale                             common environmental challenge, is called?
    c) Dorsal fin of a shark                            a) non-random evolution
    d) Wing of a moth                                   b) adaptive radiation
                                 (NEET-I 2016)          c) natural selection
      d) convergent evolution                          b) (A) – (i) convergent
                                (NEET 2013)                (B) – (i) oxygen, (ii) nucleosides
                                                       c) (B) – (i) water vapour , (ii) amino acids
29. The eye of octopus and eye of cat show                 (C) – (i) rudimentary, (ii) anatomical
different patterns of structure, yet they perform      d) (C) – (i) vestigial , (ii) anatomical
similar function. This is an example of?                   (D) – (i) mutations , (ii) multiplication
    a) analogous organs that have evolved due                                              (Mains 2010)
         to convergent evolution.
    b) analogous organs that have evolved due          32. Peripatus is a connecting link between?
         to divergent evolution.                           a) mollusca and Echinodermata
    c) homologous organs that have evolved                 b) Annelida and arthropoda
         due to convergent evolution.                      c) coelenterata and porifera
    d) homologous organs that have evolved                 d) ctenophora and platyhelminthes.
         due to divergent evolution.                                                            (2009)
                                  (NEET 2013)
                                                       33. In the case of peppered moth (Biston
30. Which one of the following options gives one       betularia) the black –colored form became
correct example each of convergent evolution           dominant over the light-colored from in England
and divergent evolution?                               during industrial revolution. This is an example
        Convergent              Divergent              of?
        evolution               evolution                   a) appearance of the darker colored
                                                                individuals due to very poor sunlight
 a)     Eyes of octopus and     Bones of forelimbs          b) protective mimicry
        mammals                 of vertebrates              c) inheritance of darker color character
                                                                acquired due to the darker environment
 b)     Thorns of               Wings of butterflies
                                                            d) natural selection whereby the darker
        Bougainvillea and       and bird
                                                                forms were selected.
        tendrils of Cucurbita
                                                                                                  (2009)
 c)     Bones of forelimbs      Wings of butterfly
        of vertebrates          and birds              34. Thorn of Bougainvillea and tendril of
                                                       Cucurbita are examples of?
 d)     Thorns of               Eyes of octopus and        a) vestigial organs
        bougainvillea and       mammals                    b) retrogressive evolution
        tendrils of Cucurbita                              c) analogous organs
                                        (2012)             d) homologous organs
                                                                                                (2008)
31. Given below are four statements (A-D) each
with one or two blanks. Select the option which        35. Which one of the following pairs of items
correctly fills up the blanks in two statements.       correctly belongs to the category of organs
Statements:                                            mentioned against it?
    A) Wings of butterfly and birds look alike             a) Nephridia of earthworm and Malpighian
        and are the results of (i) evolution.                  tubules of cockroach – excretory organs
    B) Miller showed that CH4, H2, NH3 and (i)             b) Wings of honeybee and wings of crow –
        when exposed to electric discharge in a                homologous organs
        flask                                              c) Thorn of Bougainvillea and tendrils of
        resulted in formation of (ii).                         Cucurbita – analogous organs
    C) Vermiform appendix is a (i) organ and an            d) Nictitating membrane and blind spot in
        (ii) evidence of evolution.                            human eye – vestigial organs
    D) According to Darwin evolution took                                                        (2008)
        place due to (i) and (ii) of the fittest.
a) (D) – (i) small variations , (ii) survival,         36. Which one of the following statements is
    (A) – (i) convergent                               correct?
    a) There is no evidence of the existence of         d) study of carbohydrates/ proteins in
       gills during embryogenesis of mammals.              rocks.
    b) All plant and animal cells are totipotent.                                          (2004)
    c) Ontogeny repeats phylogeny.
    d) Stem cells are specialized cells.            42. Convergent evolution is illustrated by?
                                          (2007)        a) rat and dog
                                                        b) bacterium and protozoan
37. When two species of different genealogy             c) starfish and cuttle fish
come to resemble each other as a result of              d) dogfish and whale
adaptation, the phenomenon is termed?                                                        (2003)
    a) Microevolution
    b) Co-evolution                                 43. Industrial melanism is an example of?
    c) Convergent evolution                              a) drug resistance
    d) Divergent evolution                               b) darkening of skin due to smoke from
                                        (2007)              industries
                                                         c) protective resemblance with the
38. An important evidence in favour of organic              surroundings
evolution is the occurrence of?                          d) defensive adaptation of skin against
    a) homologous and analogous organs                      ultraviolet radiations.
    b) homologous and vestigial organs                                                      (2003)
    c) analogous and vestigial organs
    d) homologous organs only                       44. Which one of the following describes
                                        (2006)      correctly the homologous structures?
                                                        a) Organs with anatomical similarities, but
39. Which one of the following is not a living              performing different functions
fossil?                                                 b) Organs with anatomical dissimilarities,
    a) Peripatus                                            but performing same function
    b) King crab                                        c) Organs that have no function now, but
    c) Sphenodon                                            had an important function in ancestor
    d) Archaeopteryx                                    d) Organs appearing only in embryonic
                                           (2006)           stage and disappearing later in the adult
                                                                                             (2003)
40. Which of the following is the relatively most
accurate method for dating of fossils?              45. Which of the following are homologous
    a) Radio-carbon method                          organs?
    b) Potassium-argon method                           a) Wings of birds and locust
    c) Electron-spin resonance method                   b) Wings of birds and pectoral fins of fish
    d) Uranium-lead method                              c) Wings of bat and butterfly
                                          (2005)        d) Legs of frog and cockroach
                                                                                            (2002)
41. Age of fossils in the past was generally
determined by radio-carbon method and other         46. Sequence of which of the following is used to
methods involve radioactive elements found in       know the phylogeny?
the rocks. More precise methods, which were             a) mRNA
used recently and led to the revision of the            b) rRNA
evolutionary periods for different groups of            c) tRNA
organisms, includes?                                    d) DNA
    a) study of carbohydrates/proteins in fossils                                           (2002)
    b) study of the conditions of fossilization
    c) electron spin resonance (ESR) and fossil     47. Half life period of 14C is?
        DNA                                             a) 500 years
                                                        b) 5000 years
    c) 50 years                                        c) development of characteristics by
    d) 5×104 years                                        random mating
                                        (2001)         d) replacement of common characteristics
                                                          in different groups.
48. In Lederberg’s replica plating experiment                                            (1997)
what shall be used to obtain streptomycin
resistant strain?                                  54. Which of the following is the correct group of
     a) Minimal medium and streptomycin            vestigial organs in man?
     b) Complete medium and streptomycin               a) Nictitating membrane , ear muscles,
     c) Only minimal medium                                eyelids and coccyx
     d) Only complete medium                           b) Appendix , coccyx, ear muscles and
                                         (2001)            elbow joint
                                                       c) Wisdom tooth, coccyx, body hair and ear
49. Similarities in organism with different                muscles
genotype indicates?                                    d) Wisdom tooth, body hairs, nictitating
    a) microevolution                                      membrane and vermiform appendix
    b) macroevolution                                                                        (1996)
    c) convergent evolution
    d) divergent evolution                         55. Which of the following isotopes is most
                                          (2001)   dangerous to homo sapiens?
                                                       a) Phosphorus-32
50. Which is not a vestigial organ in man?             b) Strontium-90
    a) Third molar                                     c) Caesium-137
    b) Nails                                           d) Iodine-131
    c) Segmental muscles of abdomen                                                         (1995)
    d) Coccyx
                                         (2000)    56. The change of the lighter-colored variety of
                                                   peppered moth (Biston betularia) to its darker
51. Phenomenon of ‘Industrial melanism’            variety (Biston carbonaria) is due to?
demonstrates?                                          a) mutation
    a) geographical isolation                          b) regeneration
    b) reproductive isolation                          c) genetic isolation
    c) natural selection                               d) temporal isolation
    d) induced mutation                                                                     (1995)
                                      (1999)
                                                   57. The homologous organs are those that show
52. Which of the following are homologous          similarity in?
organs?                                                a) appearance
    a) Wings of bird and hands of human                b) function
    b) Nails of human being and claws in               c) origin
        animals                                        d) size
    c) Wings of bird and wings of insect                                                 (1995)
    d) Wings of bat and wings of cockroach
                                       (1999)      58. The presence of gill slits, in the embryos of all
                                                   vertebrates, supports the theory of?
53. Evolutionary convergence is characterized          a) metamorphosis
by?                                                    b) biogenesis
    a) development of dissimilar characteristics       c) organic evolution
        in closely related groups                      d) recapitulation
    b) development of a common set of                                                         (1995)
        characteristics in groups of different
        ancestry
59. The earliest fossil form, in the phylogeny of   What is Adaptive Radiation?
horse, is?                                          65. Match List-I with List-II.
    a) Equus
    b) Mesohippus
                                                           List-I                                 List-II
    c) Eohippus
    d) Merychippus                                   p)    Adaptive                 i)            Selection of resistant
                                          (1994)           radiation                              varieties due to
                                                                                                  exchange use
60. Which of the following is a pair of                                                           of herbicides and
homologous organs?                                                                                pesticides
    a) Pectoral fin of rohu and forelimb of horse
    b) Wings of grasshopper and wings of crow        q)    Convergent               ii)           Bones of forelimbs in
    c) Lungs of rabbit and gills of rohu                   evolution                              man and whale
    d) Wings of bat and wings of butterfly           r)    Divergent                iii)          Wings of butterfly
                                         (1994)            evolution                              and bird
123. Which of the following had the smallest        128. What kind of evidence suggested that man
brain capacity?                                     is more closely related with chimpanzee than
    a) Homo neanderthalensis                        with other hominoid apes?
    b) Homo habilis                                     a) Evidence from DNA extracted from sex
    c) Homo erectus                                         chromosomes only
    d) Homo sapiens                                     b) Comparison of chromosomes
                         (2015 Cancelled)                   morphology only
                                                        c) Evidence from fossil remains, and the
124. What was the most significant trend in the             fossil mitochondrial DNA alone
evolution of modern man (Homo sapiens) from             d) Evidence from DNA extracted from sex
his ancestors?                                              chromosomes, autosomes.
     a) Shortening of jaws                                                                  (2004)
     b) Binocular vision
     c) Increasing cranial capacity                 129. In recent years, DNA sequences (nucleotide
     d) Upright posture                             sequence) of mt DNA and Y chromosomes were
                                 (2012,2011)        considered for the study of human evolution,
                                                    because
125. The extinct human who lived 1,00,000 to            a) they are small and therefore, easy to
40,000 years ago, in Europe, Asia and parts of               study
Africa, with short stature, heavy eyebrows,             b) they are uniparental in origin and do not
retreating fore heads, large jaws with heavy                 take part in recombination
teeth, stocky bodies, a lumbering gait and              c) their structure is known in greater detail
stooped posture was                                     d) they can be studied from the samples of
    a) Homo habilis                                          fossil remains.
    b) Neanderthal human                                                                    (2003)
    c) Cro-Magnon human
    d) Ramapithecus                                 130. According to fossils discovered up to
                                         (2012)     present time origin and evolution of man started
                                                    from
126. The most apparent change during the                a) France
evolutionary history of homo sapiens is traced in       b) Java
    a) loss of body hair                                c) Africa
    b) walking upright                                  d) China
    c) shortening of the jaws                                                                (2002)
    d) remarkable increase in the brain size
                                (Mains 2010)        131. Which of the following is closest relative of
                                                    man?
127. There are two opposing views about origin          a) Chimpanzee
of modern man. According to one view Homo               b) Gorilla
erectus in Asia were the ancestors of modern            c) Orangutan
man. A study of variation of DNA however                d) Gibbon
suggested African origin of modern man. What                                                   (2001)
kind of observation on DNA variation could
suggest this?                                       132. Which of the following is correct order of the
    a) Greater variation in Asia than in Africa     evolutionary history of man?
    b) Greater variation in Africa than in Asia         a) Peking man, Homo sapiens, Neanderthal
    c) Similar variation in Africa and Asia                 man, Cromagnon man
    b) Peking man, Heidelberg man,                      a) Homo erectus is preceded by Homo
       Neanderthal man Cromagnon man                       habilis.
    c) Peking man, Neanderthal man, Homo                b) Neanderthal man and Cro-Magnon man
       sapiens, Cromagnon man                              were living at the same time.
    d) Peking man, Neanderthal man, Homo                c) Australopithecus was living in Australia
       sapiens, Heidelberg man                          d) None of these
                                    (2001)                                                  (1997)
133. Homo sapiens have evolved in                   139. Common origin of man and chimpanzee is
    a) Paleocene                                    best shown by
    b) Pleistocene                                      a) binocular vision
    c) Oligocene                                        b) chromosome number
    d) Holocene                                         c) dental formula
                                        (2000)          d) cranial capacity
                                                                                        (1997)
134. Character which is closely related to human
evolution is                                        140. Which of the following changes for man in
    a) disappearance of tail                        the course of evolution is probably useless?
    b) reduction in size of jaws                        a) Development of being erect
    c) binocular vision                                 b) Development of cranial capacity
    d) flat nails.                                      c) Loss of tail
                                          (2000)        d) Development of opposable thumb
                                                                                             (1996)
135. Who is directly related to man?
    a) Gorilla                                      141. Which of the following is the direct ancestor
    b) Rhesus                                       of Homo sapiens?
    c) Gibbon                                           a) Australopithecus
    d) Orangutan                                        b) H. sapiens Neanderthals
                                         (2000)         c) Homo erectus
                                                        d) Homo sapiens fossils
136. Which one of the following statements is                                                 (1996)
correct?
    a) Australopithecus is the real ancestor of     142. The first domesticated animal by primitive
        modern man.                                 man was
    b) Neanderthal man is the direct ancestor           a) cat
        of Homo sapiens.                                b) cow
    c) Homo erectus is the ancestor of man.             c) dog
    d) Cro-Magnon man’s fossil has been found           d) horse
        in Ethiopia.                                                                        (1996)
                                        (1998)
                                                    143. Which one of the following changes
137. The age of the fossil of Dryopithecus on the   involved is irrelevant, in the evolution of man?
geological time scale is                                a) Perfection of hand for tool making
    a) 2.5 × 106 years back                             b) Changes of diet from hard nuts and hard
    b) 50 × 106 years back                                  roots to soft food
    c) 75 × 106 years back                              c) Loss of tail
    d) 25 × 106 years back                              d) Increase in the ability to communicate
                                         (1998)             with others and develop community
                                                            behaviour
138. Which of the following statements is correct                                               (1994)
regarding evolution of mankind?
i)     1         (I)     2        (1)   a   (11)    b      (21)    d       (31)       a     (41)   c   (51)    c       (61)   a
                 (II)    4        (2)   c   (12)    d      (22)    b       (32)       b     (42)   d   (52)    a       (62)   a
                (III)             (3)   a   (13)    b      (23)    d       (33)       d     (43)   c   (53)    b       (63)   d
                (IV)              (4)   c   (14)    c      (24)    d       (34)       d     (44)   a   (54)    d       (64)   a
                (V)               (5)   c   (15)    c      (25)    d       (35)       a     (45)   b   (55)    b       (65)   b
                (VI)              (6)   d   (16)    d      (26)    c       (36)       c     (46)   b   (56)    a       (66)   a
               (VII)              (7)   d   (17)    c      (27)   a,b      (37)       c     (47)   b   (57)    c       (67)   a
               (VIII)             (8)   b   (18)    a      (28)    d       (38)       b     (48)   a   (58)    d       (68)   c
                (IX)              (9)   b   (19)    b      (29)    a       (39)       d     (49)   c   (59)    c       (69)   c
                (X)              (10)   b   (20)    a      (30)    a       (40)       c     (50)   b   (60)    a       (70)   a