Heredity and Evolution MCQ Questions for Class 10 Science Chapter 9 with Answers

NCERTCOURSE.COM- Find here the NCERT/CBSE chapter-wise Multiple Choice Questions from Class 10 Science book Chapter 9 Heredity and Evolution with Answers Pdf free download. This may assist you to understand and check your knowledge about the chapters. Students also can take a free test of the Multiple Choice Questions of Heredity and Evolution. Each question has four options followed by the right answer. These MCQ Questions are selected supported by the newest exam pattern as announced by CBSE.

MCQ Questions for Class 10 Science with Answers Biology

Q1. A zygote which has an X-chromosome inherited from the father will develop into a

(i) girl
(ii) boy
(iii) either boy or girl
(iv) X-chromosome does not influence the sex of a child.

(i) girl

Q2. Which of the following statement is incorrect?

(i) For every hormone there is a gene.
(ii) For every protein there is a gene.
(iii) For production of every enzyme there is a gene.
(iv) For every molecule of fat there is a gene

(iv) For every molecule of fat there is a gene

Q3. The process by which new species develop from the existing species is known as

(i) Evolution
(ii) Natural selection
(iii) Artificial selection
(iv) Speciation

(iv) Speciation

Q4. Some dinosaurs had feathers although they could not fly but birds have feathers that
help them to fly. In the context of evolution this means that-

(i) reptiles have evolved from birds
(ii) there is no evolutionary connection between reptiles and birds
(iii) feathers are homologous structure in both the organisms
(iv) Birds have evolved from reptiles.

(iv) Birds have evolved from reptiles.

Q5. The number of pairs of sex chromosomes in the zygote of a human being is

(i) 2
(ii) 3
(iii) 1
(iv) 4

(iii) 1

Q6. The modern day Human species has evolved from its earliest ancestors who lived in:

(i) Asia
(ii) Australia
(iii) Africa
(iv) China

(iii) Africa

Q7. The remaps (or impressions) of dead animals or plant? that lived in the remote past are known as

(i) extinct species
(ii) fossils
(iii) naturally selected species
(iv) none of the above

(ii) fossils

Q8. Process of selecting individuals with desired characters by man is called

(i) Hybridization
(ii) Reproduction
(iii) Artificial selection
(iv) Natural selection

(iii) Artificial selection

Q9. The theory of evolution of species by natural selection was given by

(i) Mendel
(ii) Darwin
(iii) Lamarck
(iv) Weismann

(ii) Darwin

Q10. Evolution of wild cabbage is an example of:

(i) Artificial selection
(ii) Natural selection
(iii) Mutation
(iv) Genetic drift

(i) Artificial selection

Q11. Which concept was not included in Charles Darwin’s theory of Natural Selection?

(i) Struggle for existence
(ii) Punctuated equilibrium
(iii) Survival of the fittest
(iv) Overproduction of offspring.

(ii) Punctuated equilibrium

Q12. Select the group which shares maximum number of common characters-

(i) two genera of two families
(ii) two species of a genus
(iii) two genera of a family
(iv) two individuals of a species

(iv) two individuals of a species

Q13. Process of selecting individuals with desired characters by man is called

(i) Hybridization
(ii) Reproduction
(iii) Artificial selection
(iv) Natural selection

(iii) Artificial selection

Q14. Independent inheritance of two separate traits, shape and colour of seeds in Mendel’s cross on pea plants resulted in a observable ratio of:

(i) 3 : 1
(ii) 9 : 3 : 3 : 1
(iii) 1 : 1
(iv) 9 : 4 : 2 : 1

(ii) 9 : 3 : 3 : 1

Q15. Human offspring’s sex is determined

(а) through father’s sex chromosomes.
(ii) through mother’s sex chromosomes.
(iii) by hormones.
(iv) by enzymes.

(а) through father’s sex chromosomes.

Q16. Which of the following scientist gave the principles of inheritance?

(i) Mendel
(ii) Griffin
(iii) Johanssen
(iv) Watson and Crick

(i) Mendel

Q17. The number of pairs of sex chromosomes in the zygote of a human being is

(i) 2
(ii) 3
(iii) 1
(iv) 4

(iii) 1

Q18. Select the group which shares maximum number of common characters.

(i) two individuals of a species
(ii) two species of a genus
(iii) two genera of a family
(iv) two genera of two families

(i) two individuals of a species

Q19. Those organs which have the same basic structure but different functions are called

(i) Vestigial organs
(ii) Analogous organs
(iii) Homologous organs
(iv) None of these

(iii) Homologous organ

Q20. Differences between organisms in a species are described as variation. Which of the following would you describe as continuous variation?

(i) Hair colour
(ii) Eye colour
(iii) Weight
(iv) Sex

(iii) Weight

Q21. Those organs which have the same basic structure but different functions are called

(i) Vestigial organs
(ii) Analogous organs
(iii) Homologous organs
(iv) None of these

(iii) Homologous organs

Q22. A trait in an organism is influenced by

(i) paternal DNA only
(ii) maternal DNA only
(iii) both maternal and paternal DNA
(iv) neither by paternal nor by maternal DNA

(iii) both maternal and paternal DNA

Q23. Two pink colored flowers on crossing results in 1 red, 2 pink and 1 white flower progeny. The nature of the cross is-

(i) cross fertilization
(ii) self pollination
(iii) double fertilization
(iv) no fertilization

(i) cross fertilization

Q24. Identify the two organisms which are now extinct and are studied from their fossils.

(i) white tiger and sparrow
(ii) dinosaur and fish (Knightia)
(iii) ammonite and white tiger
(iv) trilobite and white tiger

(ii) dinosaur and fish (Knightia)

Q25. The genetic constitution of an organism is called.

(i) Genotype
(ii) phenotype
(iii) variation
(iv) gene.

(i) Genotype

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