#7 Biology Class XII- Evolution (NEET, MHTCET) MCQ
Evolution (NEET, MHTCET) MCQ
1) The concept of chemical evolution is based on
(a) interaction of water, air and clay under intense heat
(b) effect of solar radiation on chemicals
(c) possible origin of life by combination of chemicals under suitable environmental condition.
(d) crystallization of chemicals.
Answer
(c) possible origin of life by combination of chemicals under suitable environmental condition.
2) When two species of different genealogy come to resemble each other as a result of adaptation, the phenomenon is termed as
(a) microevolution
(b) co-evolution
(c) convergent evolution
(d) divergent evolution.
Answer
(c) convergent evolution
3) Which one of the following scientist’s name is correctly matched with the theory put forth by him?
(a) de Vries – Natural selection
(b) Mendel – Theory of Pangenesis
(c) Weismann – Theory of continuity of germplasm.
(d) Pasteur – Inheritance of acquired characters.
Answer
(c) Weismann – Theory of continuity of germplasm.
4) Thorn of Bougainvillea and tendril of Cucurbita are examples of
(a) vestigial organs
(b) retrogressive evolution
(c) analogous organs
(d) homologous organs.
Answer
(d) homologous organs.
5) Darwin’s Finches are an excellent example of
(a) brood parasitism
(b) connecting links
(c) adaptive radiation
(d) seasonal migration.
Answer
(c) adaptive radiation
6) Evolution of different species in a given area starting from a point and spreading to other geographical areas is known as
(a) adaptive radiation
(b) natural selection
(c) migration
(d) divergent evolution.
Answer
(a) adaptive radiation
7) The theory of spontaneous generation stated that [NCERT Exemplar]
(a) life arose from living forms only
(b) life can arise from both living and non-living
(c) life can arise from non-living things only.
(d) life arises spontaneously, neither from living nor from the non-living.
Answer
(c) life can arise from non-living things only.
8) Palaentological evidences for evolution refer to the [NCERT Exemplar]
(a) development of embryo
(b) homologous organs
(c) fossils
(d) analogous organs.
Answer
(c) fossils
9) The bones of forelimbs of whale, bat, cheetah and man are similar in structure, because [NCERT Exemplar]
(a) one organism has given rise to another
(b) they share a common ancestor
(c) they perform the same function
(d) they have biochemical similarities
Answer
(b) they share a common ancestor
10) Which of the following organs are homologous?
(a) Forelimbs of man and wings of bat
(b) Wings of Bat and bird
(c) Wings of Bat and Petrodactyl
(d) None of these
Answer
(a) Forelimbs of man and wings of bat
11) Homologous organs show
(a) natural selection
(b) divergent evolution
(c) parallel evolution
(d) convergent evolution
Answer
(b) divergent evolution
12) Analogous organs arise due to
(a) divergent evolution
(b) artificial selection
(c) genetic drift
(d) convergent evolution
Answer
(d) convergent evolution
13) Evolution of life shows that life forms had a trend of moving from [NCERT Exemplar]
(a) land to water
(b) dryland to wet land
(c) fresh water to sea water
(d) water to land
Answer
(d) water to land
14) Viviparity is considered to be more evolved because [NCERT Exemplar]
(a) the young ones are left on their own
(b) the young ones are protected by a thick shell
(c) the young ones are protected inside the mother’s body and are looked after they are born leading to more chances of survival
(d) the embryo takes a long time to develop
Answer
(c) the young ones are protected inside the mother’s body and are looked after they are born leading to more chances of survival
15) Fossils are generally found in [NCERT Exemplar]
(a) sedimentary rocks
(b) igneous rocks
(c) metamorphic rocks
(d) any type of rock
Answer
(a) sedimentary rocks
16) According to Hugo de Vries, speciation is due to
(a) accumulation of small variations
(b) intraspecific breeding
(c) inter specific breeding
(d) saltation
Answer
(d) saltation
17) For the MN-blood group system, the frequencies of M and N alleles are 0.7 and 0.3, respectively
The expected frequency of MN-blood group bearing organisms is likely to be [NCERT Exemplar]
(a) 42%
(b) 49%
(c) 9%
(d) 58%
Answer
(a) 42%
18) Which type of selection explains industrial melanism observed in moth, Biston bitularia? [NCERT Exemplar]
(a) Stabilising
(b) Directional
(c) Disruptive
(d) Artificial
Answer
(b) Directional
19) The most accepted line of descent in human evolution is
(a) Australopithecus → Ramapithecus → Homo sapiens → Homo habilis
(b) Homo erectus → Homo habilis → Homo sapiens
(c) Ramapithecus → Homo habilis → Homo erectus → Homo sapiens
(d) Australopithecus → Ramapithecus → Homo erectus → Homo habilis → Homo sapiens.
Answer
(c) Ramapithecus → Homo habilis → Homo erectus → Homo sapiens
20) Which of the following is an example for link species? [NCERT Exemplar]
(a) Lobe fish
(b) Dodo bird
(c) Sea weed
(d) Chimpanzee
Answer
(d) Chimpanzee
21) Match the scientists listed under column ‘I’ with ideas listed column ‘II’. [NCERT Exemplar]
Column I Column II
A. Darwin (i)Abiogenesis
B. Oparin (ii)Use and disuse of organs
C. Lamarck (iii) Continental drift theory
D. Wagner (iv) Evolution by natural selection
(a) A-(i); B-(iv); C-(ii); D-(iii)
(b) A-(iv); B-(i); C-(ii); D-(iii)
(c) A-(ii); B-(iv); C-(iii); D-(i)
(d) A-(iv); B-(iii); C-(ii); D-(i)
Answer
(b) A-(iv); B-(i); C-(ii); D-(iii)
22) Stabilising selection favours
(a) only one extreme form of a trait
(b) both the extreme forms of a trait
(c) intermediate form of a trait
(d) none of these
Answer
(c) intermediate form of a trait
23) Disruptive selection favours
(a) only one extreme form of a trait
(b) both the extreme forms of a trait
(c) intermediate form of a trait
(d) none of these
Answer
(b) both the extreme forms of a trait
24) The phenomenon of “Industrial melanism demonstrates”
(a) natural selection
(b) induced mutation
(c) genetic drift
(d) geographical isolation
Answer
(a) natural selection
25) In 1953, S. L. Miller created primitive earth conditions in the laboratory and gave experimental evidence for origin of first form of life from pre-existing non-living organic molecules. The primitive earth conditions created include [NCERT Exemplar]
(a) low temperature, volcanic storms, atmosphere rich in oxygen
(b) low temperature, volcanic storms, reducing atmosphere
(c) high temperature, volcanic storms, non-reducing atmosphere
(d) high temperature, volcanic storms, reducing atmosphere containing CH4, NH3, etc.
Answer
(d) high temperature, volcanic storms, reducing atmosphere containing CH4, NH3, etc.
26) Which is correct formula of Hardy-Weinberg’s law?
(a) p2 + pq + q2 = 0
(b) p2 + pq + q2 = 1
(c) p2 + pq + q2 = infinity
(d) p2 + 2pq + q2 = 1
Answer
(d) p2 + 2pq + q2 = 1
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