Check the below NCERT MCQ Class 12 Biology Chapter 7 Evolution with Answers available with PDF free download. MCQ Questions for Class 12 Biology with Answers were prepared based on the latest syllabus and examination pattern issued by CBSE, NCERT and KVS. Our teachers have provided below Evolution Class 12 Biology MCQs Questions with answers which will help students to revise and get more marks in exams
Evolution Class 12 Biology MCQs Questions with Answers
Refer below for MCQ Class 12 Biology Chapter 7 Evolution with solutions. Solve questions and compare with the answers provided below
Question. Who was the first member of the genus Homo?
(a) Homo habilis
(b) Homo erectus
(c) Homo neanderthalensis
(d) Homo sapiens
Question. The cranial capacity of Homo erectus was
(a) 900 c.c.
(b) 1350 c.c.
(c) 1075 c.c.
(d) 1450 c.c.
Question. Which of the following is the correct sequence of events in the origin of life?
(i) Formation of protobionts
(ii) Synthesis of organic monomers
(iii) Synthesis of organic polymers
(iv) Formation of DNA-based genetic systems
(a) i, ii, iii, iv
(b) i, iii, ii, iv
(c) ii, iii, i, iv
(d) ii, iii, iv, i
Question. Which of the following includes all homologous organs?
(a) The wing of butterfly, wings of bird, wings of bats (patagia)
(b) The fore limb of frog, wing of bird, and fore limb of rabbit
(c) The thoracic leg of cockroach, hind leg of frog, and fore leg of rabbit
(d) Wings of bird, wings of bat (patagia), wing of “flying” lizard
Question. Vertebrate hearts and brains shows
(d) Adaptive radiation
Question. Jawless fishes were originated around
(a) 350 mya
(b) 500 mya
(c) 320 mya
(d) 200 mya
Question. According to Darwinism, which option represents the correct sequence of events in the origin of new species?
1 = Natural selection
2 = Variation and their inheritance
3 = Survival of the fittest
4 = Struggle for existence
(a) 1, 2, 3, 4
(b) 2, 3, 1, 4
(c) 3, 4, 1, 2
(d) 4, 2, 3, 1
Question. Hardy and Weinberg proposed a principle for
(a) Founder’s effect
(b) Sewal Wright effect
(c) Genetic drift
(d) Non-evolving population.
Question. From his experiments, S.L. Miller produced amino acids by mixing the following in a closed flask.
(a) CH4, H2, NH3 and water vapor at 800°C
(b) CH3, H2, NH4 and water vapor at 800°C
(c) CH4, H2, NH3 and water vapor at 600°C
(d) CH3, H2, NH3 and water vapor at 600°C
Question. The idea of mutations was brought forth by
(a) Hugo de Vries who worked on evening primrose
(b) Gregor Mendel who worked on Pisum sativum
(c) Hardy-Weinberg who worked on allele frequencies in a population
(d) Charles Darwin who observed a wide variety of organisms during sea voyage.
Question. Which of the following amino acids was not found to be synthesised in Miller’s experiment?
(c) Aspartic acid
(d) Glutamic acid
Question. Homo sapiens have evolved in
Question. Most abundant organic compound on earth is
Question. Reason of diversity in living being is
(b) long term evolutionary change
(c) gradual change
(d) short term evolutionary change.
Question. The correct sequence for the manufacture of molecules/organic compounds on the primitive earth is
(a) NH3, nucleic acid, protein and carbohydrate
(b) protein, carbohydrate, water and nucleic acid
(c) NH3, protein, carbohydrate and nucleic acid
(d) NH3, water, nucleic acid and protein.
Question. Embryological support for evolution was disapproved by
(a) Karl Ernst von Baer
(b) Alfred Wallace
(c) Charles Darwin
Question. Theory of inheritance of acquired characters was given by
(d) De Vries.
Question. Flippers of penguins and dolphins are examples of
(a) adaptive radiation
(b) convergent evolution
(c) industrial melanism
(d) natural selection.
Question. According to fossils discovered up to present time origin and evolution of man started from
Question. Among the following sets of examples for divergent evolution, select the incorrect option.
(a) Forelimbs of man, bat and cheetah
(b) Heart of bat, man and cheetah
(c) Brain of bat, man and cheetah
(d) Eye of octopus, bat and man
Question. Darwin in his “Natural Selection Theory” did not believe in any role of which one of the following in organic evolution ?
(a) Parasites and predators as natural enemies
(b) Survival of the fittest
(c) Struggle for existence
(d) Discontinuous variations
Question. Industrial melanism is an example of
(d) natural selection
Question. The eye of octopus and eye of cat show different patterns of structure, yet they perform similar function. This is an example of
(a) analogous organs that have evolved due to convergent evolution
(b) analogous organs that have evolved due to divergent evolution
(c) homologous organs that have evolved due to convergent evolution
(d) homologous organs that have evolved due to divergent evolution.
Question. “Homo sapiens” implies
(a) human race
(b) human beings
(c) modern man
(d) none of these
Question. 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
(a) appearance of the darker coloured individuals due to very poor sunlight
(b) protective mimicry
(c) inheritance of darker colour character acquired due to the darker environment
(d) natural selection whereby the darker forms were selected.
Question. When two species of different genealogy come to resemble each other as a result of adaptation, the phenomenon is termed
(c) convergent evolution
(d) divergent evolution.
Question. Which of the following is the relatively most accurate method for dating of fossils?
(a) Radio-carbon method
(b) Potassium-argon method
(c) Electron-spin resonance method
(d) Uranium-lead method
Question. In a population of 1000 individuals 360 belong to genotype AA, 480 to Aa and the remaining 160 to aa. Based on this data, the frequency of allele A in the population is
Question. Which one of the following describes correctly the homologous structures ?
(a) Organs with anatomical similarities, but performing different functions
(b) Organs with anatomical dissimilarities, but performing same function
(c) Organs that have no function now, but had an important function in ancestor
(d) Organs appearing only in embryonic stage and disappearing later in the adult
Question. Similarities in organism with different genotype indicates
(c) convergent evolution
(d) divergent evolution.
Question. At a particular locus, frequency of A allele is 0.6 and that of a is 0.4. What would be the frequency of heterozygotes in a random mating population at equilibrium?
Question. Which of the following was most similar to modern man?
(a) Java man
(b) Neanderthal man
(c) Homo habilis
(d) Cro-Magnon man
Question. Humming birds and Hawk illustrate
(a) convergent evolution
(c) adaptive radiation
(d) parallel evolution.
Question. Which of the following are homologous organs?
(a) Wings of bird and hands of human
(b) Nails of human being and claws in animals
(c) Wings of bird and wings of insect
(d) Wings of bat and wings of cockroach
Question. Which of the following had the smallest brain capacity?
(a) Homo neanderthalensis
(b) Homo habilis
(c) Homo erectus
(d) Homo sapiens
Question. Which of the following isotopes is most dangerous to Homo sapiens?
Question. The finch species of Galapagos islands are grouped according to their food sources. Which of the following is not a finch food?
(c) Tree buds
Question. The presence of gill slits, in the embryos of all vertebrates, supports the theory of
(c) organic evolution
Question. Common origin of man and chimpanzee is best shown by
(a) binocular vision
(b) chromosome number
(c) dental formula
(d) cranial capacity.
Question. Forthcoming generation are less adaptive than the parental generation due to
(a) natural selection
(c) genetic drift
Question. A population is in Hardy- weinberg equilibrium for a gene with only two alleles. If the gene frequency of an allele A is 0.7, the genotype frequency of Aa is
Question. Adaptive radiation refers to
(a) evolution of different species from a common ancestor
(b) migration of members of a species to different geographical areas
(c) power of adaptation in an individual to a variety of environments
(d) adaptations due to geographical isolation.
Question. In a species, the weight of newborn ranges from 2 to 5 kg. 97% of the newborn with an average weight between 3 to 3.3 kg survive whereas 99% of the infants born with weights from 2 to 2.5 or 4.5 to 5 kg die. Which type of selection process is taking place?
(a) Cyclical selection
(b) Directional selection
(c) Stabilising selection
(d) Disruptive selection
Question. The cranial capacity was largest among the
(a) Peking man
(b) African man
(c) Java Ape man
(d) Neanderthal man
Question. Evolutionary convergence is development of
(a) common set of characters in group of different ancestry
(b) dissimilar characters in closely related groups
(c) common set of characters in closely related groups
(d) random mating.
Question. Which one of the following changes involved is irrelevant, in the evolution of man?
(a) Perfection of hand for tool making
(b) Change of diet from hard nuts and hard roots to soft food
(c) Loss of tail
(d) Increase in the ability to communicate with others and develop community behaviour
Question. Jurassic period of the Mesozoic era is characterised by
(a) flowering plants and first dinosaurs appear
(b) gymnosperms are dominant plants and first birds appear
(c) radiation of reptiles and origin of mammal like reptiles
(d) dinosaurs become extinct and angiosperms appear.
Question. Which of the following cannot be explained by Lamarckism?
(a) Absence of lips in snakes
(b) Long neck of giraffe
(c) Degeneration of visual apparatus in cave dwellers
(d) Dull progeny of noble laureate
Question. Which of the following statements is correct about the origin and evolution of men ?
(a) Agriculture came around 50,000 years back.
(b) The Dryopithecus and Ramapithecus primates existing 15 million years ago, walked like men.
(c) Homo habilis probably ate meat.
(d) Neanderthal men lived in Asia between 1,00,000 and 40,000 years back.
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