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Question

In a dihybrid cross, f2 generation offsprings show four different phenotypes, while the genotypes are of .......... types.

A
Six
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B
Nine
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C
Eight
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D
Sixteen
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Solution

The correct option is B Nine
In a dihybrid cross, we get 9:3:3:1 as phenotypic ratio which indicates 4 phenotypes. We also get a genotypic ratio of 1:2:2:1:4:1:2:2:1 which provides 9 genotypes.
So the correct answer is 9.

974393_1027785_ans_2f93f6f44bb74628b8fb8ac8f59c8047.png

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