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

MCQ | Class 10 Science Chapter 9 | Heredity and Evolution Set B

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.

Objective Question | Science Class 10 Chapter 9

NCERT Solutions Class 10 Science
Book:	National Council of Educational Research and Training (NCERT)
Board:	Central Board of Secondary Education (CBSE)
Class:	10th
Subject:	Science
Chapter:	9
Chapters Name:	Heredity and Evolution
Medium:	English

Class 10th Science Book | Objective Type Questions

You can refer to NCERT Solutions for Class 10 Science Chapter 9 Heredity and Evolution to revise the concepts in the syllabus effectively and improve your chances of securing high marks in your board exams.

Heredity and Evolution | Class 10 Science | NCERT Solutions

Q1.	Select the group which shares maximum number of common characters-
	A. two genera of two families
	B. two species of a genus
	C. two genera of a family
	D. two individuals of a species

Ans: two individuals of a species

Q2.	Which of the following scientist gave the principles of inheritance?
	A. Mendel
	B. Griffin
	C. Johannes
	D. Watson and Crick

Ans: Mendel

Q3.	Assertion: Human, frog and bird have a common ancestor. Reason: Limbs of human, bird and frog are homologous.
	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.

Ans: Both A and R are true and R is the correct explanation of A.

Q4.	Assertion: Variation is high in sexually reproducing organisms compared to asexually reproducing organisms. Reason: Inaccuracies during DNA copying give rise to variation.
	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.

Ans: Both A and R are true but R is not the correct explanation of A.

Q5.	An example of homologous organs is
	A. Our arm and a dog’s fore-leg.
	B. Our teeth and an elephant’s tusks.
	C. Potato and runners of grass.
	D. All of the above.

Ans: All of the above.

Q6.	A Mendelian experiment consisted of breeding tall pea plants bearing violet flowers with short pea plants bearing white flowers. The progeny all bore violet flowers but almost half of them were short. This suggests that the genetic make-up of the tall parent can be depicted as
	A. TTWW
	B. TTww
	C. TtWW
	D. TtWw

Ans: TtWW

Q7.	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

Ans: artificial selection

Q8.	The fossil remains of Archaeology is a connecting link between
	A. reptiles and mammals
	B. reptiles and bird
	C. fish and amphibian
	D. amphibian and reptile

Ans: reptiles and bird

Q9.	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.

Ans: Genetic drift does not involve competition between members of a species.

Q10.	The theory of chemical evolution of life was experimentally demonstrated by-
	A. Oparin
	B. Miller and Urey
	C. Mendel
	D. Darwin

Ans: Miller and Urey

Q11.	The number of pairs of sex chromosomes in the zygote of a human being is
	A. 2
	B. 3
	C. 1
	D. 4

Ans: 1

Q12.	The human species has genetic roots in
	A. Australia
	B. Africa
	C. America
	D. Indonesia

Ans: Africa

Q13.	The remaps (or impressions) of dead animals or plant? that lived in the remote past are known as
	A. extinct species
	B. fossils
	C. naturally selected species
	D. none of the above

Ans: fossils

Q14.	Mendel proposed that every character is controlled by-
	A. one factor
	B. two factors
	C. one chromosome
	D. two chromosomes

Ans: Two factors.

Q15.	Which of the following characters can be acquired but not inherited?
	A. Colour of skin
	B. Size of body
	C. Colour of eyes
	D. Texture of hair

Ans: Size of body

Q16.	Identify the two organisms which are now extinct and are studied from their fossils.
	A. white tiger and sparrow
	B. dinosaur and fish (Knightia)
	C. ammonite and white tiger
	D. trilobite and white tiger

Ans: dinosaur and fish (Knightia)

Q17.	The genetic constitution of an organism is called.
	A. Genotype
	B. phenotype
	C. variation
	D. gene.

Ans: Genotype

Q18.	If a round, green seeded pea-plant (RRyy) is crossed with a wrinkled yellow seeded pea- plant (rrYY), the seeds produced in F₁ generation are
	A. round and green
	B. round and yellow
	C. wrinkled and green
	D. wrinkled and yellow

Ans: round and yellow

Q19.	According to the evolutionary theory formation of a new species occurs generally due to –
	A. Sudden creation by nature.
	B. accumulation of variations over several generations
	C. clones formed during asexual reproduction
	D. Movement of individuals from one habitat to another.