Please refer to below Exam Question for Class 12 Biology Chapter 7 Evolution . These questions and answers have been prepared by expert Class 12 Biology teachers based on the latest NCERT Book for Class 12 Biology and examination guidelines issued by CBSE, NCERT, and KVS. We have provided Class 12 Biology exam questions for all chapters in your textbooks. You will be able to easily learn problems and solutions which are expected to come in the upcoming class tests and exams for standard 12th.

Chapter 7 Evolution Class 12 Biology Exam Question

All questions and answers provided below for Exam Question Class 12 Biology Chapter 7 Evolution are very important and should be revised daily.

Objective Type Questions

Question. Which of the following scientist said that evolution of life forms had occurred driven by use and disuse of organs?
(a) Charles Darwin
(b) Lamarck
(c) Louis Pasteur
(d) Alfred Wallace

Question. Lamarck belonged to which country
(a) Greece
(b) England
(c) Russia
(d) France

Question. Work of Thomas Malthus was on
(a) Ecosystem
(b) Population
(c) Use and disuse of organs by organization
(d) Organic evolution

Question. Work of Hugo de Vries was on
(a) Pea plant
(b) Evening primrose
(c) Drosophila
(d) insects

Question. According to Hugo de Vries mutations are
(a) Random
(b) Directionless
(c) Small
(d) Both (a) and (b)

Question. According to Hugo de Vries what was the cause behind speciation
(a) Use and disuse of organs
(b) Small variations
(c) Mutations
(d) None of these

Question. Which of the following states about the frequency of allele in a given Population?
(a) Darwin’s theory of natural selection
(b) Hugo De Vries theory of mutation
(c) Lamarck theory of use and disuse of organs
(d) Hardy–Weinberg principle

Question. The total gene pool, i.e., total genes and their allele in a population remains
(a) Increasing
(b) Decreasing
(c) Constant
(d) May increase or decrease depending on the organism in population

Question. In a diploid organism the probability that an allele a with a frequency p appears both the chromosomes will be
(a) P
(b) P³
(c) P²
(d) Ap

Question. If frequencies p and q are for two allele ‘A’ and ‘a’ in a population then the value of p² + 2pq + q² =
(a) Zero
(b) >1
(c) <1
(d) 1

Question. Which statement is wrong for Darwin’s theory?
(a) All population has built in variation in characteristics
(b) Organism whose characteristics which are better for survival in natural conditions breed less and survive
(c) Those who are better fit in environment survive more and naturally selected
(d) Natural selection was taken as a mechanism of evolution

Question. Study of fossils as an evidence for evolution of life is known as
(a) Paleontological evidence
(b) Evidence from connecting links
(c) Evidence from comparative anatomy
(d) Evidence from natural selection

Question. Homology among animals indicate
(a) Similar anatomy and function
(b) Similar anatomy and different function
(c) Different anatomy and different function
(d) Different anatomy and similar function

Question. Comparative anatomy and morphology show
(a) Similarities between organisms of today and that existing years ago
(b) Differences between organisms of today and that existing years ago
(c) Fossil’s study of extinct organism
(d) Both (a) and (b)

Question. Homology indicates
(a) Convergent evolution
(b) Divergent evolution
(c) Both
(d) No evolution

Question. Thorns and Tendrils of Bougainvillea and Cucurbita are the examples of
(a) Analogy
(b) Homology
(c) Different ancestry
(d) None of these

Question. Analogy indicates which type of evolution
(a) Divergent
(b) Convergent
(c) Both (a) and (b)
(d) None of these

Question. What is not true about analogy?
(a) Flippers of penguin and dolphin are the examples of analogy
(b) It is similar habitat of different organism that has resulted in selection of similar adaptive features in analogy.
(c) Analogy is an example of convergent evolution
(d) It is the different habitat and needs of different organisms that analogy evolved

Question. Sweet potato and potato is an example of
(a) Homology
(b) Analogy
(c) Both (a) and (b)
(d) None of these

Question. Before industrialization in England which variety of months were found Abundantly?
(a) White winged
(b) Dark colour winged
(c) Moths with one white and other dark colour moth
(d) Moths with small wings

Question. Before industrialization in England white moths were more in number on trees. Which of the following is incorrect?
(a) They were not easily identified by predators pre industrialization
(b) Trees have high white lichen growth before industrialization
(c) White moths were not identified in winter background of lichens
(d) Lichens grow in polluted areas

Question. Excess use of herbicides results in selection of resistant varieties in much less time scale. This is a good example of
(a) Evolution by natural selection
(b) Evolution by anthropogenic selection
(c) Evolution by biogenesis
(d) Evolution by abiogenesis

Question. Example of adaptive radiation is
(a) Forelimbs of human, bat, Whales
(b) Tendrils and thorns of Bougainvillea
(c) Heart and brain of vertebrates
(d) Drawing finches

Question. Australian marsupials are an example of
(a) Homology
(b) Evolution by anthropogenic action
(c) Adaptive radiation
(d) Chemical evolution

Question. Which of the following is not a species of Australian marsupial adaptive Radiation?
(a) Marsupial rat
(b) Tiger cat
(c) Tasmanian wolf
(d) Lemur