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What Is Filial Generation?

In a cross be...

Question

In a cross between individuals with genotypes, TtRr, if the resulting number of offsprings is 16, identify the number of genotypes with TtRr and TtRR amongst them.

A

1 and 2

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B

2 and 3

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C

3 and 1

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D

4 and 2

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Solution

The correct option is D 4 and 2
The given cross is : TtRr x TtRr
Gametes : TR Tr tR tr
Following genotypes are produced :
TTRR - 1, TtRr - 4, TTRr - 2, TtRR - 2, ttrr - 1, Ttrr - 2, ttRr - 2, TTrr - 1, ttRR - 1

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