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

Q4. Explain the Law of Dominance using a monohybrid cross.

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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What is the correct answer to: Explain the Law of Dominance using a monohybrid cross.?

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 remai...

How do you solve Explain the Law of Dominance using a monohybrid cross. step by step?

Step-by-step explanation:
• 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)

What common mistakes should be avoided in this question?

Students often lose marks by skipping steps, writing incomplete explanations, or misunderstanding keywords used in the question.

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Student Discussion

Pawan Verma
Class · · , · Jul 30, 2020
Most important biology class 12th supplementary paper
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Alyna
Class · · , · Feb 27, 2020
I understood... Thanks
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Margaret
Class · · , · Dec 03, 2019
Thanks, I understand it now
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Dimpy Bieber
Class · · , · Sep 07, 2019
Wow this answer Is in very simple language.thank you very much saral study 😃😃
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Trisha
Class · · , · Aug 03, 2019
Thanks
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Hritujaya
Class · · , · Jul 02, 2019
Thank
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Geetha
Class · · , · Mar 05, 2019
I didn't understand
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Shoaib
Class · · , · Feb 03, 2019
Satisfied thnx
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Akash
Class · · , · Feb 02, 2019
I did not understand
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ananya
Class · · , · Nov 03, 2017
its is an answer to dihybrid cross
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