Refer to CBSE Class 12 Biology Evolution MCQs provided below. CBSE Class 12 Biology MCQs with answers available in Pdf for free download. The MCQ Questions for Class 12 Biology with answers have been prepared as per the latest syllabus, CBSE books and examination pattern suggested in Class 12 by CBSE, NCERT and KVS. Multiple Choice Questions for Chapter 7 Evolution are an important part of exams for Class 12 Biology and if practiced properly can help you to get higher marks. Refer to more Chapter-wise MCQs for CBSE Class 12 Biology and also download more latest study material for all subjects
MCQ for Class 12 Biology Chapter 7 Evolution
Class 12 Biology students should refer to the following multiple-choice questions with answers for Chapter 7 Evolution in Class 12. These MCQ questions with answers for Class 12 Biology will come in exams and help you to score good marks
Chapter 7 Evolution MCQ Questions Class 12 Biology with Answers
Question: Stanley L. Miller conducted experiments before 1953 on prebiotic earth environment using special apparatus. The primary surprising products were
a) amino acids
b) peptides
c) nucleotides
d) simple sugars
Answer : A
Question: Who proposed that the first form of life come from preexisting non- living molecules?
a) Oparin and Haldane
b) de Vries and Haldane
c) Darwin and Lamarck
d) Louis Pasteur and Miller
Answer : A
Question: How is extinction represented in a family tree diagram?
a) When a branch splits.
b) When a branch ends.
c) When a branch shifts along x - axis.
d) When a branch shifts along y - axis.
Answer : B
Question: Analogous organs are
a) different in origin but perform similar functions.
b) common in origin and perform common functions.
c) common in origin but perform different functions.
d) different in origin and perform different functions.
Answer : A
Question: Homologous organs show
a) divergent evolution.
b) convergent evolution.
c) parallel evolution.
d) both b) and c).
Answer : A
Question: What is common amongst whale, seal and shark?
a) Homoiothermy
b) Seasonal migration
c) Thick subcutaneous fat
d) Convergent evolution
Answer : D
Question: Thorn of Bougainvillea and tendril of Cucurbita are examples of
a) retrogressive evolution.
b) analogous organs.
c) homologous organs.
d) vestigial organs.
Answer : C
Question: Industrial melanism is an example of
a) drug resistance.
b) darkening of skin due to smoke from industries.
c) protective resemblance with the surroundings.
d) defensive adaptation of skin against ultraviolet radiations.
Answer : C
Question: Darwin’s finches are a good example of
a) convergent evolution
b) industrial melanism
c) connecting link
d) adaptive radiation
Answer : D
Question: Adaptive radiation refers to
a) power of adaptation in an individual to a variety of environments.
b) adaptations due to Geographical isolation.
c) evolution of different species from a common ancestor.
d) migration of members of a species to different geographical areas.
Answer : C
Question: Which of the following is used as an atmospheric pollution indicator?
a) Lichens
b) Lepidoptera
c) Lycopersicon
d) Lycopodium
Answer : A
Question: The theory of spontaneous generation stated that
a) life can arise from non-living things only
b) life arises spontaneously, neither from living nor from the non-living.
c) life can arise from both living and non-living
d) life arose from living forms only
Answer : A
Question: Animal husbandry and plant breeding programmes are the examples of
a) artificial selection
b) reverse evolution
c) mutation
d) natural selection
Answer : A
Question: Palaentological evidences for evolution refer to the
a) fossils
b) homologous organs
c) development of embryo
d) analogous organs
Answer : A
Question: The bones of forelimbs of whale, bat, cheetah and man are similar in structure, because
a) they share a common ancestor
b) one organism has given rise to another
c) they perform the same function
d) the have biochemical similarities
Answer : A
Question: Analogous organs arise due to
a) convergent evolution
b) genetic drift
c) artificial selection
d) divergent evolution
Answer : A
Question:
a) population genetics
b) mendelian genetics
c) biometrics
d) molecular genetics
Answer : A
Question: Appearance of antibiotic-resistant bacteria is an example of
a) pre-existing variation in the population
b) divergent evolution
c) transduction
d) adaptive radiation
Answer : A
Question: The force that initiates evolution is
a) Variation
b) Mutation
c) Extinction
d) Adaptation
Answer : A
Question: ___________ is a vestigial organ
a) Vermiform appendix
b) None of the above
c) Papillae
d) Intestinal villi
Answer : A
Question: Evolution of life shows that life forms had a trend of moving from:
a) water to land
b) fresh water to sea water
c) dryland to wet land
d) land to water
Answer : A
Question: Viviparity is considered to be more evolved because
a) the young ones are protected inside the mother's body and are looked after they are born leading to more chances of survival
b) the embryo takes a long time to develop
c) the young ones are protected by a thick shell
d) the young ones are left on their own
Answer : A
Question: Fossils are generally found in
a) Sedimentary rocks
b) Igneous rocks
c) Metamorphic rocks
d) Any type of rock
Answer : A
Question: 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
a) 42%
b) 49%
c) 9%
d) 58%
Answer : A
Question: Which type of selection is industrial melanism observed in moth, Biston bitularia:
a) Directional
b) Stabilising
c) Disruptive
d) Artificial
Answer : A
Question: The most accepted line of descent in human evolution is:
a) Ramapithecus → Homo habilis → Homo erectus → Homo sapiens
b) Australopithecus → Ramapithecus → Homo erectus →Homo habilis → Homo sapiens
c) Homo erectus → Homo habilis → Homo sapiens
d) Australopithecus → Ramapithecus → Homo sapiens → homo habilis
Answer : A
Question: Which of the following is an example for link species?
a) Lobe fish
b) Dodo bird
c) Sea weed
d) Tyrannosaurus rex
Answer : A
Question: The earliest geological time period among the following is
a) Cambrian
b) Permian
c) Jurassic
d) Quaternary
Answer : A
Question: The experiment that simulated conditions thought to be present on the early earth
a) Miller–Urey experiment
b) Schiehallion experimen
c) Geiger–Marsden experiment
d) Hershey–Chase experiment
Answer : A
Question: Example of a homologous organ
a) The arm of a human, wing of a bird
b) Wing of an insect, wing of a bird
c) Wing of an insect, wing of a bird
d) None of the above
Answer : A
b) Weismann
d) Lamarck
b) Lamarck
d) deVries
b) Weismann
d) Darwin
b) H2
d) CH
b) dominant
d) adaptable
b) Jordan’s rule
d) Allen’s rule
b) rRNA
d) DNA
b) Mutation
d) Selection
Question : The Finches of Galapogas islands provide an evidence in favour of
a) biogeographical evolution
b) special creation
c) evolution due to mutation
d) retrogressive evolution EBD_7209 Evolution 253
Answer : A
Question : The term ‘Survival of Fittest’ was used by
a) Charles Darwin
b) Herbert Spencer
c) Jean Baptiste
d) Hugo de Vries
Answer : B
Question : Tasmanian Wolf is a marsupial while Wolf is a placental mammal. This shows
a) convergent evolution
b) divergent evolution
c) inheritance of acquired characters
d) None of these
Answer : A
Question : Darwin was most influenced by
a) Lamarck’s theory of acquired characters.
b) Weismann’s theory of germplasm.
c) Wallace’s theory of origin of species.
d) Essay on Population by Malthus.
Answer : D
Question : Single step large mutation leading to speciation is also called
a) Founder effect
b) saltation
c) branching descent
d) natural selection
Answer : B
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
a) 0.21
b) 0.42
c) 0.36
d) 0.7
Answer : B
Question : If the frequency of dominant allele is 60%, find out the percentage of heterozygous individuals in the population.
a) 48%
b) 50%
c) 47%
d) 45%
Answer : A
Question : Random genetic drift in a population probably results from
a) highly genetically variable individuals.
b) interbreeding within the population.
c) constant low mutation rate.
d) large population size.
Answer : A
Question : Natural selection can lead to
a) stabilization
b) directional change
c) disruption
d) all of these
Answer : D
Question : The first mammals were like
a) chimpanzee
b) gorilla
c) shrews
d) reptiles
Answer : C
Question :
a) i-P; ii-M; iii-N; iv-O
b) i-N; ii-P; iii-O; iv-M
c) i-p; ii-O; iii-N; iv-M
d) i-M; ii-P; iii-N; iv-O
Answer : i-P; ii-M; iii-N; iv-O
Question : In 1953 S. L. Miller created primitive earth conditions in the laboratory and gave experimental evidence for origin of first form of life from preexisting non-living organic molecules. The primitive earth conditions created include:
a) high temperature, volcanic storms, reducing atmosphere containing CH4, NH3 etc
b) high temperature, volcanic storms, non-reducing atmosphere
c) low temperature, volcanic storms, reducing atmosphere
d) low temperature, volcanic storms, atmosphere rich in oxygen
Answer : high temperature, volcanic storms, reducing atmosphere containing CH4, NH3 etc
Question : Variations during mutations of meiotic recombinations are
a) random and directionless
b) random and directional
c) random and small
d) random, small and directional
Answer : random and directionless
Question : Artificial selection to obtain cows yielding higher milk output represents
a) Artificial selection to obtain cows yielding higher milk output represents
b) Disruptive as it splits the population into two one yielding higher output and the other lower output
c) Stabilizing followed by disruptive as it stabilizes the population to produce higher yielding cows
d) Stabilizing selection as it stabilizes this character in the population
Answer : Artificial selection to obtain cows yielding higher milk output represents
Question : The principle of competitive exclusion was stated by
a) G.F. Gause
b) C. Darwin
c) Verhulst and Pearl
d) Mac Arthur
Answer : G.F. Gause
Question : The chronological order of human evolution from early to the recent is
a) Ramapithecus → Australopithecu s →Homo habilis → Homo erectus
b) Australopithecus → Homo habilis → Ramapithecus → Homo erectus
c) Australopithecus → Ramapithecus → Homo habilis → Homo erectus
d) All of these
Answer : Ramapithecus → Australopithecus →Homo habilis → Homo erectus
Question : In Hardy-Weinberg equation, the frequency of heterozygous individual is represented by
a) 2pq
b) pq
c) Both
d) None of these
Answer : 2pq
Question : Analogous structures are a result of
a) Convergent evolution
b) Convergent evolution
c) Shared ancestry
d) Stabilizing selection
Answer : Convergent evolution
Question : A population will not exist in Hardy Weinberg equilibrium if
a) individuals mate selectively
b) there are no mutations
c) there are no mutations
d) All of these
Answer : individuals mate selectively
Question : Which of the following characteristics is mainly responsible for diversification of insects on land?
a) Exoskeleton
b) Bilateral symmetry
c) Segmentation
d) Eyes
Answer : Exoskeleton
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MCQs for Biology CBSE Class 12 Chapter 7 Evolution
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CBSE MCQs Biology Class 12 Chapter 7 Evolution
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