CBSE Class 10 Science Chapter 9 Heredity and Evolution Multiple Choice Questions with Answers. MCQ Class 10 Science Heredity and Evolution with Answers was Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 10 Science Heredity and Evolution MCQs with Answers to know their preparation level.
Multiple Choice Questions - Set - 5
Question 1:
Wild cabbage has evolved into new varieties like cabbage, broccoli and cauliflower by
(a) genetic drift
(b) natural selection
(c) reproductive isolation
(d) artificial selection
Correct Answer – (D)
Question 2 :
Natural selection is called ‘survival of the fittest’. Which of the following statements best describes an organism?
(a) How strong it is compared to other individuals of the same species.
(b) How much food and resources it is able to gather for its offspring.
(c) The ability to adapt to the environment in the niche it occupies.
(d) The number of fertile off spring it has.
Correct Answer – (C)
Question 3 :
What is the difference between genetic drift and change due to natural selection?
(a) Genetic drift does not require the presence of variation.
(b) Genetic drift never occurs in nature, natural selection does.
(c) Genetic drift does not involve competition between members of a species.
(d) There is no difference.
Correct Answer – (C)
Question 4 :
The more characteristics two species have in common :
(a) More closely they are related and more recently they had a common ancestors.
(b) More distantly they are related and more recently they have common ancestors.
(c) More closely they are related and more distantly they have common ancestors.
(d) More distantly they are related and more distantly they have common ancestors.
Correct Answer – (A)
Question 5 :
Which of the following is an example of genetic variation?
(a) One person has a scar, but his friend does not.
(b) One person is older than another.
(c) Reeta eats meat, but her sister Geeta is a vegetarian.
(d) Two children have different eye colours.
Correct Answer – (D)
Question 6 :
Human offspring’s sex is determined
(а) through father’s sex chromosomes.
(b) through mother’s sex chromosomes.
(c) by hormones.
(d) by enzymes.
Correct Answer – (A)
Question 7 :
Which concept was not included in Charles Darwin’s theory of Natural Selection?
(a) Struggle for existence
(b) Punctuated equilibrium
(c) Survival of the fittest
(d) Overproduction of offspring.
Correct Answer – (B)
Question 8 :
To study the natural phenomenon of inheritance, Mendel selected the pea plants. Which of the following properties were suitable for their studies?
(i) Plants would easily self pollinate or cross-pollinate in nature.
(ii) Plants were easily grown in garden soil with a considerably shorter generation time.
(iii) Pea plants do not require the true-breeding for hybridisation experiments.
(iv) Many parts of the plant such as pod, seed, flower, cotyledons showed distinct phenotypes.
(a) (i), (ii) and (iii).
(b) (ii) and (iv).
(c) (i) and (ii).
(d) (ii), (iii) and (iv).
Correct Answer – (B)
Question 9 :
Differences between organisms in a species are described as variation. Which of the following would you describe as continuous variation?
(a) Hair colour
(b) Eye colour
(c) Weight
(d) Sex
Correct Answer – (C)
Question 10 :
The process by which new species develop from the existing species is known as
(a) Evolution
(b) Natural selection
(c) Artificial selection
(d) Speciation
Correct Answer – (D)
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