Select the genotypes and phenotypes seen in the F2. B) White A1A1B1B1 Red A1A2B1

Question

Select the genotypes and phenotypes seen in the F2.

B) White A1A1B1B1
Red A1A2B1B1 and A1A1B1B2
Light pink A1A1B2B2 , A1A2B1B2 and A2A2B1B1
Pink A1A2B2B2 and A2A2B1B2
Dark red A2A2B2B2

C) White A1A1B1B1
Red A1A2B1B1 and A1A1B1B2
Pink A1A1B2B2 , A1A2B1B2 and A2A2B1B1
Light pink A1A2B2B2 and A2A2B1B2
Dark red A2A2B2B2 .

D) Dark red A1A1B1B1
Red A1A2B1B1 and A1A1B1B2
Pink A1A1B2B2 , A1A2B1B2 and A2A2B1B1
Light pink A1A2B2B2 and A2A2B1B2
White with the genotype A2A2B2B2

Explanation / Answer

In the F2 generation the genotypes and phenotypes would be as follows:

Dark red : A1A1B1B1
Red : A1A2B1B1 and A1A1B1B2
Pink : A1A1B2B2 , A1A2B1B2 and A2A2B1B1
Light pink: A1A2B2B2 and A2A2B1B2
White : A2A2B2B2

The genotypes exhibit incomplete dominance (1:3:4). Hence, option D is correct.

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