Evolution PYQs Set 1 (PDF)

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Mere Teacher · Previous Year Questions NEET Biology · Evolution · Set 1 (Q1-30)
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1. $Artificial selection to obtain cows yielding higher milk output represents :$ (1) $Directional as it pushes the mean of the character in one direction$ (2) $Disruptive as it splits the population into two, one yielding higher output and the other lower output$ (3) $Stabilizing followed by disruptive as it stabilizes the population to produce higher yielding cows$ (4) $Stabilizing selection as it stabilizes this character in the population$ 2. $Variations caused by mutation, as proposed by Hugo de Vries, are$ (1) $random and directional$ (2) $random and directionless$ (3) $small and directional$ (4) $small and directionless$ 3. $An important evidence in favour of organic evolution is the occurence of -$ (1) $Homologous and vestigial organs$ (2) $Analogous and vestigial organs$ (3) $Homologous organs only$ (4) $Homologous and analogous organs$ 4. $The eye of octopus and eye of cat show different patterns of structure, yet they perform similar function. This is an example of$ (1) $Homologous organs that have evolved due to convergent evolution.$ (2) $Homologous organs that have evolved due to divergent evolution.$ (3) $Analogous organs that have evolved due to convergent evolution.$ (4) $Analogous organs that have evolved due to divergent evolution$ 5. $Forelimbs of cat, lizard used in walking; forelimbs of whale used in swimming and forelimbs of bats used in flying are an example of :-$ (1) $Analogous organs$ (2) $Adaptive radiation$ (3) $Homologous organs$ (4) $Convergent evolution$ 6. $Select the correct group/set of Australian Marsupials exhibiting adaptive radiation.$ (1) $Lemur, Anteater, Wolf$ (2) $Tasmanian wolf, Bobcat, Marsupial mole$ (3) $Numbat, Spotted cuscus, Flying phalanger$ (4) $Mole, Flying squirrel, Tasmanian tiger cat$ 7. $Among the following sets of examples for divergent evolution, select the incorrect option:$ (1) $Forelimbs of man, bat and cheetah$ (2) $Heart of bat, man and cheetah$ (3) $Brain of bat, man and cheetah$ (4) $Eye of octopus, bat and man$ 8. $Which one of the following options gives one correct example each of convergent evolution and divergent evolution? Convergent evolution Divergent evolution$ (1) $Bones of forelimbs of vertebrates Wings of butterfly and birds$ (2) $Thorns of Bougainvillia and tendrils of Cucurbita Eyes of Octopus and Mammals$ (3) $Eyes of octopus and mammals Bones of forelimbs of vertebrates$ (4) $Thorns of Bougainvillia and tendrils of Cucurbita Wings of butterflies and birds$ 9. $Embryological support for evolution was proposed by:$ (1) $Karl Ernst von Baer$ (2) $Charles Darwin$ (3) $Alfred Wallace$ (4) $Ernst Haeckel$ 10. $Peripatus is a connecting link between :-$ (1) $Coelenterata and Porifera$ (2) $Ctenophora and Platyhelminthes$ (3) $Mollusca and Echinodermata$ (4) $Annelida and Arthropoda$ 11. $Which of the following structures is homologues to the wing of a birds?$ (1) $Dorsal fin of a Shark$ (2) $Wing of a Moth$ (3) $Hind limb of Rabbit$ (4) $Flipper of Whale$ 12. $Evolutionary history of an organism is known as-$ (1) $Phylogeny$ (2) $Ancestry$ (3) $Palaeontology$ (4) $Ontogeny$ 13. $According to Hugo de Vries, the mechanism of evolution is :-$ (1) $Multiple step mutations$ (2) $Saltation$ (3) $Phenotypic variations$ (4) $Minor mutations$ 14. $A population will not exist in Hardy-Weinberg equilibrium if:$ (1) $Individuals mate selectively$ (2) $There are no mutations$ (3) $There is no migration$ (4) $The population is large$ 15. $Which one of the following is a wrong statement regarding mutations?$ (1) $Cancer cells commonly show chromosomal aberrations.$ (2) $UV and Gamma rays are mutagens.$ (3) $Change in a single base pair of DNA does not cause mutation.$ (4) $Deletion and insertion of base pairs cause frame-shift mutations$ 16. $Which of the following structure is homologus to the wing of a bird?$ (1) $Dorsal fin of a Shark$ (2) $Wing of a Moth$ (3) $Hind limb of Rabbit$ (4) $Flipper of Whale$ 17. $The idea of mutations was brought forth by:-$ (1) $Hardy Weinberg, who worked on allele frequencies in a population$ (2) $Charles Darwin, who observed a wide variety of organisms during sea voyage$ (3) $Hugo do Vries, who worked on evening primrose$ (4) $Gregor Mendel, who worked on Pisum sativum$ 18. $Jurassic period of the Mesozoic era is characterised by -$ (1) $Gymosperms are dominant plants and first birds appeared$ (2) $Radiation of reptiles and origin of mammal like reptiles$ (3) $Dinosaurs become extinct and angiosperms appeared$ (4) $Flowering plants and first dinosaurs appeared$ 19. $The chronological order of human evolution from early to the recent is$ (1) $Ramapithecus \to Australopithecus \to Homo habilis \to Homo erectus$ (2) $Ramapithecus \to Homo habilis \to Australopithecus \to Homo erectus$ (3) $Australopithecus \to Homo habilis \to Ramapithecus \to Homo erectus$ (4) $Australopithecus \to Ramapithecus \to Homo habilis \to Homo erectus$ 20. $When two species of different genealogy come to resemble each other as a result of adaptation, the phenomenon is termed?$ (1) $Divergent evolution$ (2) $Microevolution$ (3) $Co-evolution$ (4) $Convergent evolution$ 21. $Evolution of different species in a given area starting from a point and spreading to other geographical areas is known as$ (1) $Adaptive radiation$ (2) $Natural selection$ (3) $Migration$ (4) $Divergent evolution$ 22. $Which of the following had the smallest brain capacity?$ (1) $Homo erectus$ (2) $Homo sapiens$ (3) $Homo neanderthalensis$ (4) $Homo habilis$ 23. $Flippers of Penguins and Dolphins are examples of:$ (1) $Natural selection$ (2) $Adaptive radiation$ (3) $Convergent evolution$ (4) $Industrial melanism$ 24. $In the case of peppered moth (Biston betularia) the black-coloured form became dominant over the light-coloured form in England during industrial revolution. This is an example of :-$ (1) $Inheritance of darker colour character acquired due to the darker environment$ (2) $Natural selection whereby the darker forms were selected$ (3) $Appearance of the darker coloured individuals due to very poor sunlight$ (4) $Protective mimicry$ 25. $Embryological support for evolution was disapproved by:$ (1) $Alfred Wallance$ (2) $Charles Darwin$ (3) $Oparin$ (4) $Karl Ernst Von Baer$ 26. $The phenomenon of evolution of different species in a given geographical area starting from a point and spreading to other habitats is called-$ (1) $Co-evolution$ (2) $Natural selection$ (3) $Adaptive radiation$ (4) $Saltation$ 27. $Embryological support for evolution was disapproved by :$ (1) $Oparin$ (2) $Karl Ernst von Baer$ (3) $Alfred Wallace$ (4) $Charles Darwin$ 28. $A gene locus has two alleles A and a . If the frequency of dominant allele A is 0.4 , then what will be the frequency of homozygous dominant, heterozygous and homozygous recessive individuals in the population?$ (1) $0.36 (AA); 0.48 (Aa); 0.16 (aa)$ (2) $0.16 (AA); 0.24 (Aa); 0.36 (aa)$ (3) $0.16 (AA); 0.48 (Aa); 0.36 (aa)$ (4) $0.16 (AA); 0.36 (Aa); 0.48 (aa)$ 29. $What was the most significant trend in the evolution of modern man (Homo sapiens) from his ancestors?$ (1) $Shortening of jaws$ (2) $Binocular vision$ (3) $Increasing brain capacity$ (4) $Upright posture$ 30. $The tendency of population to remain in genetic equilibrium may be disturbed by$ (1) $Random mating$ (2) $Lack of migration$ (3) $Lack of mutations$ (4) $Lack of random mating$