Explain the Law of Dominance using a mon | Class 12 Biology Chapter Principles of Inheritance and Variation, Principles of Inheritance and Variation NCERT Solutions

Question: Explain the Law of Dominance using a monohybrid cross.

Answer:

Mendel’s law of dominance states that a dominant allele expresses itself in a monohybrid cross and suppresses the expression of recessive allele. However, this recessive allele for a character is not lost and remains hidden or masked in the progenies of F1generation and reappears in the next generation.

For example, when pea plants with round seeds (RR) are crossed with plants with wrinkled seeds (rr), all seeds in F1 generation were found to be round (Rr). When these round seeds were self fertilized, both the round and wrinkled seeds appeared in F2 generation in 3: 1 ratio. Hence, in F1 generation, the dominant character (round seeds) appeared and the recessive character (wrinkled seeds) got suppressed, which reappeared in F2 generation.

A monohybrid cross between round and wrinkled pea seeds

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Comments

Pawan Verma
2020-07-30 11:39:59

Most important biology class 12th supplementary paper

Alyna
2020-02-27 20:31:36

I understood... Thanks

Margaret
2019-12-03 23:24:37

Thanks, I understand it now

Dimpy Bieber
2019-09-07 20:31:59

Wow this answer Is in very simple language.thank you very much saral study ðð

Trisha
2019-08-03 12:22:51

Thanks

Hritujaya
2019-07-02 09:12:18

Thank

Geetha
2019-03-05 16:00:18

I didn't understand

Shoaib
2019-02-03 10:40:19

Satisfied thnx

Akash
2019-02-02 09:14:41

I did not understand

ananya
2017-11-03 21:57:06

its is an answer to dihybrid cross

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Welcome to the NCERT Solutions for Class 12 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 4: Explain the Law of Dominance using a monohybrid cross.....

Explain the Law of Dominance using a mon | Class 12 Biology Chapter Principles of Inheritance and Variation, Principles of Inheritance and Variation NCERT Solutions

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