MCQ ON MENDEL’S LAWS class 12 for NEET

MCQ ON MENDEL’S LAWS class 12 for NEET | THE TYPES OF GENES class 12 | MCQ MENDEL’S LAWS with Answer | Check the below NCERT MCQ question for class 12 Biology based on the with Answers.

MCQ ON MENDEL'S LAWS class 12 for NEET

MCQ ON MENDEL’S LAWS class 12 for NEET

MCQ on MENDEL’S LAWS class 12 Biology with answers were prepared based on the latest pattern.We have provided class 12 Biology MCQs questions on MENDEL’S LAWS with Answers to help students understand the concept very well.
MCQ ON MENDEL’S LAWS is useful for NEET / CSIR / UGC / CBSE / ICSE / AIIMS / EXAM / AFMC EXAM / STATE LEVEL MEDICAL EXAM 2022-23, 2023-24

Introduction:
Gregor Johann Mendel popularly known as father of genetics , proposed theory of inheritance. Mendel did experiments on garden pea pisum sativum.Mendel’s breeding material consisted of pure lines.Mendel’s experimentation involves four steps – selection, hybridisation , selfing and mendel’s principle of inheritance consists of four postulates 1.Principle of paired unit factors
2.Principle of law of dominance
3.principle of segregation
4.Principle of independent assortment.

MCQ ON MENDEL’S LAWS class 12 for NEET

1. Mendel conducted hybridisation experiments on

(a) pigeon pea
(b) garden pea
(c) wild pea
(d) sweet pea

Ans (b) garden pea

2. Allele of a gene are found on

(a) same chromosome
(b) homologous chromosome
(c) nonhomologous chromosome
(d) any chromosome

Ans. (b) homologous chromosome

3.Mendel ‘s last law is

(a) segregation
(b) dominance
(c) independent assortment
(d) all the above

Ans. (c) independent assortment

4. The Cross between hybrid and recessive parent is

(a) back cross
(b) test cross
(c) monohybrid cross
(d) dihybrid cross

Ans.(b) test cross

5. A cross between hybrid and its parent is

(a) back cross
(b) reciprocal cross
(c) monohybrid cross
(d) dihybrid cross

Ans.(a) back cross

6. Mendel formulated the law of purity of gametes on the basis of.

(a) test cross
(b) back cross
(c) monohybrid cross
(d) dihybrid cross

Ans.(c) monohybrid cross

7. Mendel law of independent assortment can be demonstrated by

(a) Test cross
(b) Back cross
(c) monohybrid cross
(d) dihybrid cross

Ans.(d) dihybrid cross

8.The law of dominance – recessive is proved by

(a) back cross
(b) incomplete dominance
(c) monohybrid cross
(d) dihybrid cross

Ans.(c) monohybrid cross

9. Mendel’s principle of segregation is based on segregation of alleles during

(a) gamete formation
(b) seed formation
(c) pollination
(d) embryonic development

Ans. (a) gamete formation

10. Ratio 9: 7 is due to

(a) Supplementary gene
(b) lethal genes
(c) complementary genes
(d) epistatic genes

Ans. (c) complimentary genes

11.Mendel chose contrasting traits in pea

(a) three
(b) four
(c) seven
(d) all the above

Ans.(c) seven

12.A cross between F1 hybrid and a recessive parent (Tt xx tt ) gives a ratio of

(a) 1:1
(b) 2:1
(c) 3:1
(d) 4:1

Ans . (a) 1:1

13. Genes controlled seven traits in pea studied by Mendel were actually located on

(a) seven chromosome
(b) six chromosome
(c) four chromosome
(d) five chromosome

Ans.(c) four chromosome

15. Mendel’s law of independent assortment is based on F2 ratio of

(a) 1:2:1
(b) 9:3:3:1
(c) 2:1
(d) 3:1

Ans. (b) 9:3:3:1

16. Mendel found certain traits not to assort independently .It is due to

(a) dominance
(b) linkage
(c) crossing overs
(d) amitosis

Ans.(b) linkage

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17. For a given character , a gamete is always

(a) homozygous
(b) pure
(c) hybrid
(d) heterozygous

Ans.(b) pure

18. Mendel’s law of heredity can be explained with the help of

(a) mitosis
(b) Meiosis
(c) cloning
(d) rRNA

And.(b) meiosis

19. Mendel did not observe linkage due to

(a) mutations
(b) synapsis
(c) crossing over
(d) independent assortment

Ans. (d) independent assortment

20 .Which is correct about traits chosen by Mendel ?

(a) Terminal pod is dominant
(b) Constricted pod is dominant
(c) green coloured pod is dominant
(d) Tall plants are recessive

Ans.(c) green coloured pod is dominant.

21.In complimentary genes the dihybrid ratio of 9:3:3:1 is modified to

(a) 9:7
(b) 12:3:1
(c) 15:1
(d) 13:3

Ans. (a) 9:7

22. Law of Mendel which is not completely applicable.

(a) Law of dominance
(b) Law of segregation
(c) Law of independent assortment
(d) Co- dominance

Ans.(d) Co-dominance

About the author

Balram Saw

My name is Balram Saw and by profession, I am a lecturer. I did my masters in M.sc Zoology. On this blog, I share all the information related to biology.

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