CBSE Class 10 Science Book Chapter 9 “Heredity and Evolution” Multiple Choice Questions ?(MCQs) with Answers

Check the below NCERT MCQ Questions for Class 10 Science Chapter 9 Heredity and Evolution with Answers Pdf free download. MCQ Questions for Class 10 Science with Answers were prepared based on the latest exam pattern. We have Provided Heredity and Evolution Class 10 Science MCQs Questions with Answers to help students understand the concept very well.

Q1. Assertion: Specialization is the reproductive isolation amongst once interbreeding population.
Reason: Genetic drift, Natural selection and Severe DNA change can cause specialization.

(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
(e) Both A and R are false.

(a) Both A and R are true and R is the correct explanation of A.

Q2. Assertion: Acquired trait cannot be passed on from one generation to next generation.
Reason: Inaccuracy during DNA copying of acquired trait is minimum.

Q3. Human offspring’s sex is determined

(a) through father’s sex chromosomes.
(b) through mother’s sex chromosomes.
(c) by hormones.
(d) by enzymes.

(a) through father’s sex chromosomes.

Q4. Wing of a bird and wing of an insect are

(a) Homologous organs
(b) analogous organs
(c) vestigial organ
(d) both (a) and (b)

(a) Homologous organs

Q5. 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.

(b) Punctuated equilibrium

Q6. If a round green seeded plant (RRyy) is crossed with wrinkled, yellow seeded plant (rrYY),the seeds produced in F1 are :

A) Round and yellow
B) Round and green
C) wrinkled and green
D) wrinkled and yellow

A) Round and yellow

Q7. Select the correct statement.

A) Tendril of pea plant and phylloclade of opuntia are homologous
B) Tendril of pea plant and phylloclade of opuntia are analogous
C) wings of birds and limbs of lizards are analogous
D) wings of birds and wings of bat are homologous

B) Tendril of pea plant and phylloclade of opuntia are analogous

Q8. If a round, green seeded pea plant (RR yy) is crossed with wrinkled, yellow seeded pea plant (rr YY), the seeds produced in F1 generation are

(a) round and yellow
(b) round and green
(c) wrinkled and green
(d) wrinkled and yellow

(a) round and yellow

Q9. In human males all the chromosomes are paired perfectly except one. This/these unpaired chromosome is/are

(i) large chromosome
(ii) small chromosome
(iii) Y-chromosome
(iv) X-chromosome

(a) (i) and (ii)
(b) (iii) only
(c) (iii) and (iv)
(d) (ii) and (iv)

Q10. A zygote which has an X-chromosome inherited from the father will develop into a

(a) boy
(b) girl
(c) X- chromosome does not determine the sex of a child
(d) either boy or girl

(b) girl

Q11. New species may be formed if

(i) DNA undergoes significant changes in germ cells
(ii) chromosome number changes in the gamete
(iii) there is no change in the genetic material
(iv) mating does not take place

(a) (i) and (ii)
(b) (i) and (iii)
(c) (ii), (iii) and (iv)
(d) (i), (ii) and (iii)

(a) (i) and (ii)

Q12. Two pea plants one with round green seeds (RRyy) and another with wrinkled yellow (rrYY) seeds produce F1 progeny that have round, yellow (RrYy) seeds. When F1 plants are selfed, the F2 progeny will have new combination of characters. Choose the new combination from the following:

(i) Round, yellow
(ii) Round, green
(iii) Wrinkled, yellow
(iv) Wrinkled, green

(a) (i) and (ii)
(b) (i) and (iv)
(c) (ii) and (iii)
(d) (i) and (iii)

(b) (i) and (iv)

Q13. A basket of vegetables contains carrot, potato, radish and tomato. Which of them represent the correct homologous structures?

(a) Carrot and potato
(b) Carrot and tomato
(c) Radish and carrot
(d) Radish and potato

Q14. If the fossil of an organism is found in the deeper layers of Earth, then we can predict that

(a) the extinction of organism has occurred recently
(b) the extinction of organism has occurred thousands of years ago
(c) the fossil position in the layers of Earth is not related to its time of extinction
(d) time of extinction cannot be determined

(b) the extinction of organism has occurred thousands of years ago

Q15. A trait in an organism is influenced by

(a) paternal DNA only
(b) maternal DNA only
(c) both maternal and paternal DNA
(d) neither by paternal nor by maternal DNA

Q16. Select the group which shares maximum number of common characters.

(a) two individuals of a species
(b) two species of a genus
(c) two genera of a family
(d) two genera of two families

(a) two individuals of a species

Q17. Miller synthesized simple amino-acid from:

(a) methane, ammonia, oxygen, nitrogen
(b) hydrogen, methane, ammonia, water
(c) ammonia, methane, water, carbon-di-oxide
(d) hydrogen, oxygen, water, nitrogen

(b) hydrogen, methane, ammonia, water

Q18. Sex chromosomes in man are:

(a) XY
(b) XX
(c) Y
(d) X

(a) XY

Q19. Example of Homologous organs are:

(a) My hand and dog’s forearm
(b) My teeth and elephants teeth
(c) Potato and runner of grass
(d) All of these

(d) All of these

Q20. Analogous organs show similarity in:

(a) size
(b) origin
(c) appearance
(d) function

(d) function

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Q1. Assertion: Specialization is the reproductive isolation amongst once interbreeding population.Reason: Genetic drift, Natural selection and Severe DNA change can cause specialization.

Q2. Assertion: Acquired trait cannot be passed on from one generation to next generation.Reason: Inaccuracy during DNA copying of acquired trait is minimum.