Heredity Class 10 Science MCQ Quiz – Test Your Knowledge

WhatsApp Group Join Now

Telegram Group Join Now

Are you preparing for your CBSE Class 10 Science exam? Boost your understanding of Heredity with this engaging MCQ quiz. This chapter covers inheritance of traits, Mendel’s laws, sex determination, and variations—key topics for board exams.

About the Quiz

Chapter Name: Heredity
Subject: Science (Biology)
Book: NCERT Class 10 Science
Question Type: Multiple Choice Questions (MCQs)
Leaderboard: Yes (Compete with Others!)

Why Take This Quiz?

✔ Helps in quick revision for board exams
✔ Covers important NCERT-based questions
✔ Leaderboard feature to track your performance

Click Below to Start the Quiz!

Chapter 8 - Heredity

1 / 15

Assertion (A): Offsprings produced by sexual reproduction show variation.

Reason (R): Each offspring produced by sexual reproduction inherits all the genes from each parent.

A is false but R is true

A is true but R is false

Both A and R are true and R is not the correct explanation of A

Both A and R are true and R is the correct explanation of A

2 / 15

In an asexually reproducing species if trait X exists in 5% of a population and trait Y exists in 70% of the same population, which of the two traits is likely to have arisen earlier?

Insufficient information

Trait Y

Trait X

3 / 15

The height of a plant is regulated by:

DNA which is directly influenced by growth hormone.

Genes that regulate the proteins directly.

Growth hormones directly under the influence of a gene.

Growth hormones under the influence of the enzymes coded by a gene.

4 / 15

Assertion: The probability of survival of an organism produced through sexual reproduction is more than that of an organism produced through asexual mode.

Reason: Variations provide advantages to individuals for survival.

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

Both A and R are true, and R is not the correct explanation of A.

A is false but R is true.

A is true but R is false.

5 / 15

Which of the following statements is incorrect?

For every protein there is a gene.

For the production of every enzyme there is a gene.

For every hormone there is a gene.

For every molecule of fat there is a gene.

6 / 15

Which of the following is heterozygous?

ttrr

TTRR

7 / 15

A heterozygous red-eyed female Drosophila mated with a white-eyed male would produce _____.

Half red and half white-eyed females and all white-eyed males in the F1

Red-eyed females and white-eyed males in the F1

Half red and half white-eyed females as well as males in the F1

White-eyed females and red-eyed males in the F1

8 / 15

A homozygous dominant guinea pig with black fur is crossed with a homozygous guinea pig with white fur. The F1 generation is crossed with itself.

What percentage of F2 generation is expected to show a white fur coat?

100 %

25 %

75 %

50 %

9 / 15

Two pink-colored flowers on crossing resulted in 1 red, 2 pink, and 1 white flower progeny. The nature of the cross will be

Double fertilization

Self-pollination

Cross-fertilization

No fertilization

10 / 15

If a tall pea plant is crossed with a pure dwarf pea plant then, what percentage of F1 and F2 generation respectively will be tall?

25%, 25%

75%, 100%

100%, 75%

50%, 50%

11 / 15

9 : 3 : 3 : 1 ratio is due to _____.

Crossing over

Recessiveness

Independent assortment

Segregation

12 / 15

In cattle, having horns is a recessive trait (h) to not having horns (H). When cattle with horns are crossed with cattle that do not have horns, the number of offspring having horns was equal to those not having horns. Which of the following is MOST LIKELY to be true?

Both parents are heterozygous.

One parent is homozygous dominant.

One parent is heterozygous.

Both parents are homozygous dominant.

13 / 15

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

Wrinkled and yellow

Round and yellow

Round and green

Wrinkled and green

14 / 15

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

Girl

X-chromosome does not determine the sex of a child

Boy

Either boy or girl

15 / 15

The genotype of offspring formed from Tt x tt will be

Tt and tt

TT and tt

Only TT

Only tt

Your score is

The average score is 57%

Leaderboard – Top Scorers

Check out the highest scorers below!

Pos.	Name	Score	Duration	Points
1	Sohrav ali	100 %	50 seconds	15
2	Nani	100 %	1 minutes 5 seconds	15
3	Nani	100 %	1 minutes 22 seconds	15
4	Ronin Akagami	100 %	1 minutes 24 seconds	15
5	Sohrav Ali	93 %	47 seconds	14
6	MSA	93 %	2 minutes 41 seconds	14
7	manjusha	93 %	2 minutes 44 seconds	14
8	anjana	93 %	4 minutes 2 seconds	14
9	a	93 %	4 minutes 53 seconds	14
10	cbse ka king	93 %	5 minutes 44 seconds	14
11	r	93 %	5 minutes 55 seconds	14
12	Babu	93 %	6 minutes 40 seconds	14
13	A	87 %	1 minutes 42 seconds	13
14	n	87 %	11 minutes 18 seconds	13
15	Rijjakjot	87 %	12 minutes 17 seconds	13
16	754	80 %	1 minutes 27 seconds	12
17	Babu	80 %	13 minutes 12 seconds	12
18	Anjana	80 %	14 minutes 59 seconds	12
19	Naman Tyagi	73 %	3 minutes 50 seconds	11
20	manjusha kochare	73 %	8 minutes 14 seconds	11
21	anvita	73 %	31 minutes 3 seconds	11
22	JIN	73 %	36 minutes 14 seconds	11
23	Riya	67 %	1 minutes 21 seconds	10
24	Mansi	67 %	5 minutes 54 seconds	10
25	Ronin Akagami	67 %	6 minutes 6 seconds	10
26	maokidbfhiubirbd fdbvkjebqr	67 %	10 minutes 42 seconds	10
27	S	67 %	11 minutes 20 seconds	10
28	A	60 %	2 minutes 57 seconds	9
29	MSA	60 %	5 minutes 14 seconds	9
30	457	60 %	5 minutes 45 seconds	9
31	pawan	60 %	7 minutes 37 seconds	9
32	abcdef	60 %	8 minutes 31 seconds	9
33	xyz	60 %	8 minutes 33 seconds	9
34	pawan	60 %	9 minutes 33 seconds	9
35	Amar	60 %	16 minutes 26 seconds	9
36	manjusha kochare	53 %	11 minutes 28 seconds	8
37	Nile	47 %	4 minutes 4 seconds	7
38	Sohrav ali	47 %	4 minutes 52 seconds	7
39	MSA	47 %	8 minutes 22 seconds	7
40	daksh nagpAL	47 %	21 minutes 23 seconds	7
41	HHUHHHHHHHHHHH	40 %	1 minutes 15 seconds	6
42	Harsh	40 %	1 minutes 57 seconds	6
43	Sohrav Ali	40 %	2 minutes 37 seconds	6
44	Sana	40 %	2 minutes 50 seconds	6
45	shaireen	40 %	4 minutes 43 seconds	6
46	M	40 %	7 minutes 27 seconds	6
47	Rk	33 %	2 minutes 15 seconds	5
48	Rohit	33 %	4 minutes 10 seconds	5
49	Rupam	33 %	4 minutes 30 seconds	5
50	Nani	33 %	4 minutes 34 seconds	5
51	Mithu. Kumari	33 %	5 minutes 18 seconds	5
52	Akriti	33 %	12 minutes 31 seconds	5
53	kashish devshree	27 %	4 minutes 7 seconds	4
54	khushi	20 %	1 minutes 19 seconds	3
55	manjusha kochare	20 %	1 minutes 39 seconds	3
56	prajal	20 %	2 minutes 3 seconds	3
57	Ruhi	20 %	3 minutes 40 seconds	3
58	रोशन	20 %	4 minutes 15 seconds	3
59	chythra	20 %	8 minutes 26 seconds	3
60	A	20 %	9 minutes 19 seconds	3
61	Lucky	13 %	43 seconds	2
62	7t	13 %	5 minutes 59 seconds	2
63	Mahmood	13 %	17 minutes 13 seconds	2
64	njk	0 %	35 seconds	0

Key Topics Covered in the Quiz

✔ Mendel’s Laws of Inheritance
✔ Monohybrid and Dihybrid Cross
✔ Dominant and Recessive Traits
✔ Sex Determination in Humans
✔ Genotypic and Phenotypic Ratios
✔ Variation and Evolution

More Class 10 Science MCQ Quizzes

Test yourself, compete with others, and master Heredity for your exams!

WhatsApp Group Join Now

Telegram Group Join Now

Spread the love

Also See: Making of a Global World Class 10 Important Questions Answers

About the Quiz

Why Take This Quiz?

Leaderboard – Top Scorers

Key Topics Covered in the Quiz

More Class 10 Science MCQ Quizzes

Related posts:

Leave a Comment Cancel reply