BIOLOGY NEET

1. Coacervates belongs to the category of 11. The phenomenon of ‘Industrial Melanism’

(A) cyanobacteria demonstrates
(B) protozoans (A) Natural selection
(C) molecular aggregates with lipid bilayer (B) Induced Mutation
(D) molecular aggregate lacking definite lipid (C) Reproductive isolation
(D) Geographical isolation
2. Protocell or eobionts, the first forms of life that
appeared in sea water were 12. The best description of natural selection is
(A) Anaerobic and chemoheterotrophs (A) the survival of the fittest
(B) aerobic and chemoheterotrophs (B) the struggle for existence
(C) anaerobic and photoautotrophs (C) the reproductive success of the members of a
(D) aerobic and chemoautotrophs population best adapted to the environment
(D) the overproduction of offspring in
3. Reappearance of certain ancestral characters is environments with limited natural resources
called
(A) Palaeogenesis (B) Atavism 13. Random genetic drift in a population probably
(C) Paedogenesis (D) Polyembryony results from
(A) highly genetically variable individuals
4. The presence of gill slits, in the embryos of all (B) interbreeding within this population
vertebrates, supports the theory of (C) constant low mutation rate
(A) metamorphosis (B) Biogenesis (D) large population size
(C) organic evolution (D) recapitulation
14. Darwin judge the fitness of an individuals by
5. Homologous organs indicate the (A) ability to defend itself
(A) Convergent evolution (B) strategy to obtain food
(B) Parallel evolution (C) number of offsprings
(C) Common descent (D) dominance over other individuals
(D) Natural selection
15. Industrial melanism is an example of
6. Mutation cannot explain (A) defensive adaptation of skin against UV
(A) Variations (B) Industrial melanism radiations
(C) Connecting link (D) Living fossils (B) drug resistance
(C) protective resemblance with the surrounding
7. De Vries gave his mutation theory on organic (D) darkening of skin due to industries
evolution while working on
(A) Oenothera lamarckiana 16. Which is not applicable to the Biological species
(B) Drosophila melanogaster concept?
(C) Pisum sativum (D) Althea rosea (A) hybridization
(B) natural population
8. Cause of speciation is (C) reproductive isolation
(A) Random mating (B) Hybridization (D) gene pool
(C) Isolation (D) migration
17. The tendency of population to remain in genetic
9. Fourth coming generations can be less adaptive equilibrium may be disturbed by
than their parental generations due to (A) lack of migration
(A) Natural selection (B) Mutation (B) Lack of mutation
(C) Genetic drift (D) Adaptation (C) Lack of random mating
(D) Random mating
10. One of the following is not related to Mutation
Theory 18. Variation in gene frequencies within populations
(A) Continuous variation can occur by chance rather than by natural
(B) Hugo De Vries selection. This is referred to be
(C) Oenothera lamarckiana (A) Genetic drift (B) Random mating
(D) Inheritable character of Mutation (C) Genetic load (D) Genetic flow

19. Industrial melanism is an example of

(A) Neo Lamarckism (B) Neo Darwinism
(C) Natural selection (D) Mutation
20. Which of the following had the smallest brain 30. The first true cellular form of life appeared on earth
capacity? about
(A) Homo neanderthalensis (A) 2 billion years ago (B) 3 mya
(B) Homo habilis (C) 3.5 mya (D) 1 mya
(C) Homo erectus
(D) Homo sapiens 31. The classical example of adaptive radiation in
development of new species is
21. (p + q)2 = p2 +2pq + q2 =1 represents an equation (A) Darwin’s finches (B) Marsupials of Australia
used in (C) both of these (D) none of these
(A) population genetics (B) mendelian genetics
(C) biometrics (D) molecular genetics 32. Tasmanian wolf is a marsupial while wolf is a
placental mammal. This show
22. Appearance of antibiotics-resistance bacteria is an (A) genetic drift
example of (B) parallel evolution
(A) adaptive radiation (C) divergent evolution
(B) transduction (D) inheritance of acquired characters
(C) pre-existing variation in the population
(D) divergent evolution 33. The organs which look different but have the same
basic structure and origin are known as
23. Which type of selection is industrial melanism (A) homologous (B) vestigial
observed in moth, Biston bitularia (C) heterologous (D) analogous
(A) Stabilising (B) Directional
(C) disruptive (D) artificial 34. Which is incorrect?
(A) Wings of insects and bats are analogous
24. The most accepted line of decent in human (B) wings of bats and birds are homologous
evolution is (C) wings of insects and birds are analogous
(A) Australopithecus – Ramapithecus – Homo (D) wings of insects and birds are homologous
sapiens – homo habilis
(B) Homo erectus – Homo habilis – Homo sapience 35. Which of the following are analogous organs?
(C) Ramapithecus – Homo habilis – Homo erectus (A) wings of bird and bat
– Homo sapiens (B) wings of insects and bird
(D) Australopithecus – Ramapithecus – Homo (C) forelegs of horse and arms of man
erectus – Homo habilis – Homo sapiens (D) flippers of whale and forelimbs of man

25. Variation during mutations of meiotic 36. Which pair of organs are analogous in nature?
recombinations are (A) gill of fish and gill of prawn
(A) Random and directionless (B) ear of frog and ear of rabbit
(B) random and directional (C) arm of man and limb of horse
(C) random and small (D) wing of bat and flipper of seal
(D) random, small and directional
37. Convergent evolution of two species is associated
26. Oparin’s theory of “origin of life” is based on with
(A) chemical evolution (A) different habitat
(B) cosmic evolution (B) analogous organs
(C) artificial synthesis (C) homologous organs
(D) organic evolution (D) recent common ancestor

27. The primitive Earth conditions were experimentally 38. Atavism in man means
shown by (A) appearance of new characters
(A) Miller (B) Urey (B) evolution of existing characters
(C) Oparin (D) Both a and b (C) appearance of ancestral characters
(D) loss of some pre-existing characters
28. Finding of Miller’s experiment on origin of life has
provided evidence for 39. The most direct evidence of organic evolution is
(A) theory of biogenesis (A) fossils (B) embryos
(B) Oparin-Haldane theory (C) morphology (D) vestigial organs
(C) Theory of special creation
(D) Theory of organic evolution 40. Fossil evidence of evolution is called
(A) anatomy (B) embryology
29. Dinosaurs suddenly disappeared from the earth (C) palaeontology (D) biogeography
about
(A) 35 mya (B) 70 mya
(C) 100 mya (D) more than 140 mya
41. “Theory of Continuity of Germplasm” was 44. The theory of natural selection of Darwin
propounded by (A) does not explain fossils
(A) Darwin (B) Lamarck (B) is completely changed
(C) Gregor Mendel (D) August Weismann (C) Has the first theory of organic evolution
(D) has been failed in explaining origin of
42. Natural selection theory was proposed by Darwin variations
along with
(A) Wallace (B) Mendel 45. Darwin was influenced by reading the essay of
(C) Morgon (D) Lamarck (A) Wallace (B) Spencer
(C) Mendel (D) Mathus
43. Darwin travelled in which ship?
(A) H.N.S. Eagle (B) Titanic
(C) H.M.S Beagle (D) D. Matrica