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Q.

Consider the cross AaBb X AaBb. If the alleles for both genes exhibit complete dominance, what genotypic ratio is expected in the resulting of offspring ?

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a

1:2:1:2:4:2:1:2:1

b

1:1:1:1

c

9:3:3:1

d

1:7:7:1

answer is D.

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Detailed Solution

When there is a cross between AaBb X AaBb then the genotypic ratio is  1:2:1:2:4:2:1:2:1.

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