Heredity Class 10 Science MCQ Quiz – Test Your Knowledge

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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

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

Self-pollination

Double fertilization

Cross-fertilization

No fertilization

2 / 15

Which of the following is heterozygous?

ttrr

TTRR

3 / 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 green

Wrinkled and yellow

Round and green

Round and yellow

4 / 15

The genotype of offspring formed from Tt x tt will be

Tt and tt

Only tt

TT and tt

Only TT

5 / 15

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

Boy

Either boy or girl

Girl

X-chromosome does not determine the sex of a child

6 / 15

The height of a plant is regulated by:

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

Genes that regulate the proteins directly.

DNA which is directly influenced by growth hormone.

Growth hormones directly under the influence of a gene.

7 / 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.

A is true but R is false.

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

A is false but R is true.

8 / 15

Assertion (A): Height in pea plants is controlled by the efficiency of enzymes and is thus genetically controlled.

Reason (R): Cellular DNA is the information source for making proteins in the cell.

A is true but R is false

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

A is false but R is true

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

9 / 15

Which statement about the genotypes of organisms is correct?

One recessive allele always causes a recessive phenotype

The dominant phenotype must be heterozygous

Recessive phenotypes must be homozygous

Dominant alleles are only found in homozygotes

10 / 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.

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

A is true but R is false

A is false but R is true

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

11 / 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?

50 %

100 %

75 %

25 %

12 / 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?

Trait Y

Trait X

Insufficient information

13 / 15

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 a new combination of characters. Choose the new combination from the following.

Round, yellow

Round, green

Wrinkled, yellow

Wrinkled, green

I and IV

I and III

I and II

II and III

14 / 15

A recessive homozygote is crossed with a heterozygote of the same gene. What will be the phenotype of the F1 generation?

25 % dominant, 50 % heterozygous, 25 % recessive

All dominant

50 % dominant, 50 % recessive

75 % dominant, 25 % recessive

15 / 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.

Both parents are homozygous dominant.

One parent is heterozygous.

One parent is homozygous dominant.

Your score is

The average score is 60%

Leaderboard – Top Scorers

Check out the highest scorers below!

Pos.	Name	Score	Duration	Points
1	Sohrav ali	100 %	50 seconds	15
2	main kyun bataun	100 %	59 seconds	15
3	Gjk	100 %	1 minutes 2 seconds	15
4	Nani	100 %	1 minutes 5 seconds	15
5	manpreet singh	100 %	1 minutes 16 seconds	15
6	Nani	100 %	1 minutes 22 seconds	15
7	Ronin Akagami	100 %	1 minutes 24 seconds	15
8	cc	100 %	3 minutes 52 seconds	15
9	ladleee	100 %	6 minutes 19 seconds	15
10	umaima	100 %	14 minutes	15
11	rumaisa	100 %	15 minutes 3 seconds	15
12	asiyaa	100 %	15 minutes 38 seconds	15
13	amshal	100 %	28 minutes 42 seconds	15
14	Sohrav Ali	93 %	47 seconds	14
15	Gunu	93 %	1 minutes 10 seconds	14
16	hh	93 %	1 minutes 26 seconds	14
17	Aanya Awasthi	93 %	2 minutes 7 seconds	14
18	MSA	93 %	2 minutes 41 seconds	14
19	manjusha	93 %	2 minutes 44 seconds	14
20	anjana	93 %	4 minutes 2 seconds	14
21	a	93 %	4 minutes 53 seconds	14
22	cbse ka king	93 %	5 minutes 44 seconds	14
23	r	93 %	5 minutes 55 seconds	14
24	golibaje	93 %	6 minutes 13 seconds	14
25	Babu	93 %	6 minutes 40 seconds	14
26	b hb	93 %	16 minutes 45 seconds	14
27	GURJAR PEPSU	87 %	1 minutes 18 seconds	13
28	A	87 %	1 minutes 42 seconds	13
29	sneha	87 %	3 minutes 43 seconds	13
30	kjgfulli;	87 %	4 minutes 19 seconds	13
31	ahhhhhhhhhhhhhhhhhh	87 %	4 minutes 26 seconds	13
32	aaaaaaaaaaaaaaaaahhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh	87 %	4 minutes 58 seconds	13
33	sadhna	87 %	5 minutes	13
34	Swara	87 %	5 minutes 13 seconds	13
35	An	87 %	7 minutes 25 seconds	13
36	RAJEE	87 %	7 minutes 46 seconds	13
37	Saim	87 %	8 minutes 40 seconds	13
38	n	87 %	11 minutes 18 seconds	13
39	Titli	87 %	11 minutes 52 seconds	13
40	Rijjakjot	87 %	12 minutes 17 seconds	13
41	cc	87 %	17 minutes 35 seconds	13
42	manpreet	87 %	29 minutes 12 seconds	13
43	kihiboto	80 %	1 minutes 25 seconds	12
44	754	80 %	1 minutes 27 seconds	12
45	B..	80 %	1 minutes 29 seconds	12
46	Gunaa	80 %	1 minutes 30 seconds	12
47	ilyfuy	80 %	3 minutes 50 seconds	12
48	dddd	80 %	4 minutes 49 seconds	12
49	Garima Thakur	80 %	5 minutes 6 seconds	12
50	Sukriti Mohan	80 %	6 minutes 14 seconds	12
51	shinchan	80 %	7 minutes 32 seconds	12
52	M	80 %	8 minutes 4 seconds	12
53	hhh	80 %	10 minutes 18 seconds	12
54	Shristi	80 %	11 minutes 57 seconds	12
55	Babu	80 %	13 minutes 12 seconds	12
56	An	80 %	14 minutes 46 seconds	12
57	Anjana	80 %	14 minutes 59 seconds	12
58	Tanu	80 %	15 minutes 5 seconds	12
59	hikuto hotirungawomi	73 %	1 minutes 2 seconds	11
60	eeeeeeee	73 %	1 minutes 15 seconds	11
61	Naman Tyagi	73 %	3 minutes 50 seconds	11
62	arjun desai	73 %	4 minutes	11
63	KK	73 %	6 minutes 25 seconds	11
64	leo	73 %	6 minutes 30 seconds	11
65	manjusha kochare	73 %	8 minutes 14 seconds	11
66	mayank	73 %	9 minutes 10 seconds	11
67	Ak	73 %	9 minutes 51 seconds	11
68	Anand	73 %	11 minutes 41 seconds	11
69	sakina	73 %	14 minutes 51 seconds	11
70	md khateeb alam	73 %	17 minutes 46 seconds	11
71	kjsc	73 %	18 minutes	11
72	anvita	73 %	31 minutes 3 seconds	11
73	JIN	73 %	36 minutes 14 seconds	11
74	Riya	67 %	1 minutes 21 seconds	10
75	pepsu Gujjar	67 %	1 minutes 24 seconds	10
76	manpreet	67 %	1 minutes 45 seconds	10
77	anamta	67 %	1 minutes 57 seconds	10
78	Dyfydu	67 %	1 minutes 58 seconds	10
79	Param	67 %	3 minutes 57 seconds	10
80	Mansi	67 %	5 minutes 54 seconds	10
81	Ronin Akagami	67 %	6 minutes 6 seconds	10
82	Yash Kushwaha	67 %	6 minutes 25 seconds	10
83	sun	67 %	6 minutes 28 seconds	10
84	maokidbfhiubirbd fdbvkjebqr	67 %	10 minutes 42 seconds	10
85	S	67 %	11 minutes 20 seconds	10
86	MISHTHI	67 %	24 minutes 32 seconds	10
87	Heer	60 %	41 seconds	9
88	Dher	60 %	49 seconds	9
89	A	60 %	2 minutes 57 seconds	9
90	manpreet singh	60 %	3 minutes 4 seconds	9
91	vedanshi	60 %	3 minutes 57 seconds	9
92	H	60 %	4 minutes 17 seconds	9
93	MSA	60 %	5 minutes 14 seconds	9
94	457	60 %	5 minutes 45 seconds	9
95	Aanya Awasthi	60 %	6 minutes 34 seconds	9
96	sneha	60 %	7 minutes 17 seconds	9
97	pawan	60 %	7 minutes 37 seconds	9
98	Soumyadeep shaw	60 %	8 minutes 30 seconds	9
99	abcdef	60 %	8 minutes 31 seconds	9
100	xyz	60 %	8 minutes 33 seconds	9
101	sm	60 %	8 minutes 47 seconds	9
102	pawan	60 %	9 minutes 33 seconds	9
103	Prince	60 %	11 minutes 24 seconds	9
104	Radha	60 %	15 minutes 15 seconds	9
105	Amar	60 %	16 minutes 26 seconds	9
106	KRISH	60 %	20 minutes 53 seconds	9
107	Anant	60 %	23 minutes 37 seconds	9
108	Shehreen	60 %	26 minutes 6 seconds	9
109	manpreet singh randhawa	60 %	52 minutes 15 seconds	9
110	bbnhn	53 %	1 minutes 49 seconds	8
111	te6	53 %	3 minutes 6 seconds	8
112	esakki prema	53 %	6 minutes 2 seconds	8
113	Sasvathana	53 %	7 minutes 36 seconds	8
114	abz	53 %	8 minutes 56 seconds	8
115	manjusha kochare	53 %	11 minutes 28 seconds	8
116	Sjhd	47 %	55 seconds	7
117	otobihik imowa	47 %	1 minutes 8 seconds	7
118	Jj	47 %	2 minutes 28 seconds	7
119	I67	47 %	3 minutes 39 seconds	7
120	sasfwa	47 %	3 minutes 52 seconds	7
121	Nile	47 %	4 minutes 4 seconds	7
122	Sohrav ali	47 %	4 minutes 52 seconds	7
123	Aayush	47 %	7 minutes 2 seconds	7
124	x	47 %	7 minutes 53 seconds	7
125	MSA	47 %	8 minutes 22 seconds	7
126	T	47 %	9 minutes 47 seconds	7
127	anamta	47 %	11 minutes 39 seconds	7
128	B..	47 %	12 minutes 25 seconds	7
129	Bio	47 %	13 minutes 24 seconds	7
130	daksh nagpAL	47 %	21 minutes 23 seconds	7
131	HHUHHHHHHHHHHH	40 %	1 minutes 15 seconds	6
132	hi how are you	40 %	1 minutes 48 seconds	6
133	Harsh	40 %	1 minutes 57 seconds	6
134	Sohrav Ali	40 %	2 minutes 37 seconds	6
135	Sana	40 %	2 minutes 50 seconds	6
136	Nik	40 %	3 minutes 37 seconds	6
137	a	40 %	4 minutes 6 seconds	6
138	shaireen	40 %	4 minutes 43 seconds	6
139	Riya	40 %	5 minutes 10 seconds	6
140	Ganesh prajapati	40 %	6 minutes 13 seconds	6
141	a	40 %	6 minutes 25 seconds	6
142	M	40 %	7 minutes 27 seconds	6
143	B	40 %	9 minutes 26 seconds	6
144	y	40 %	20570 days 9 hours 58 minutes 40 seconds	6
145	Dheer	33 %	40 seconds	5
146	Krisha	33 %	1 minutes 20 seconds	5
147	Rk	33 %	2 minutes 15 seconds	5
148	zareen	33 %	3 minutes 10 seconds	5
149	Rohit	33 %	4 minutes 10 seconds	5
150	Rupam	33 %	4 minutes 30 seconds	5
151	Nani	33 %	4 minutes 34 seconds	5
152	Mithu. Kumari	33 %	5 minutes 18 seconds	5
153	puneet superstar	33 %	5 minutes 30 seconds	5
154	manpreet	33 %	6 minutes 29 seconds	5
155	Akriti	33 %	12 minutes 31 seconds	5
156	Abhishek Kumar	33 %	13 minutes 20 seconds	5
157	vine	33 %	17 minutes	5
158	adarsh	33 %	19 minutes 35 seconds	5
159	achal	33 %	25 minutes 59 seconds	5
160	Hhjj	27 %	2 minutes 11 seconds	4
161	Dhgd	27 %	2 minutes 13 seconds	4
162	Food	27 %	3 minutes 14 seconds	4
163	kashish devshree	27 %	4 minutes 7 seconds	4
164	Mk	27 %	7 minutes 53 seconds	4
165	Riza	27 %	8 minutes 16 seconds	4
166	Aditi	27 %	8 minutes 20 seconds	4
167	Radhika	27 %	22 minutes 17 seconds	4
168	inzamam	20 %	1 minutes 2 seconds	3
169	khushi	20 %	1 minutes 19 seconds	3
170	H	20 %	1 minutes 21 seconds	3
171	manjusha kochare	20 %	1 minutes 39 seconds	3
172	gujjax pepsu bhai	20 %	1 minutes 43 seconds	3
173	prajal	20 %	2 minutes 3 seconds	3
174	Ruhi	20 %	3 minutes 40 seconds	3
175	रोशन	20 %	4 minutes 15 seconds	3
176	chythra	20 %	8 minutes 26 seconds	3
177	A	20 %	9 minutes 19 seconds	3
178	R	20 %	11 minutes 32 seconds	3
179	Lucky	13 %	43 seconds	2
180	V	13 %	1 minutes 9 seconds	2
181	@$$$$	13 %	3 minutes 10 seconds	2
182	afzal ansari	13 %	5 minutes 30 seconds	2
183	kihiboto	13 %	5 minutes 36 seconds	2
184	7t	13 %	5 minutes 59 seconds	2
185	Mahmood	13 %	17 minutes 13 seconds	2
186	j	7 %	3 minutes 15 seconds	1
187	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

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About the Quiz

Why Take This Quiz?

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Key Topics Covered in the Quiz

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