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AaGGxaaGg Which Genotype Is NOT Possible in the Offspring Produced by the Cross? A. AaGG B. Aagg C. AaGg D. AaGG A B C D

Question

AaGGxaaGg Which genotype is NOT possible in the offspring produced by the cross? A. AaGG B. Aagg C. aaGg D. aaGG A B C D

Answer

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Answer

B. Aagg

Explanation

## Step 1:The given genetic cross is AaGG x aaGg. In this cross, each parent is homozygous at one locus with allele 'A' or 'a' and 'G' for the other parent and 'g'. ## Step 2:In the offspring generations, there could be combinations of 'A' or 'a' with either 'G' or 'g'. ## Step 3:The combinations resulting from the initial mating are AaGG, AaGg, aaGG, and aaGg. ## Step 4:The genotype 'Aagg' can't result from the initial parents' mating because one of the parents always provides 'G'. Hence the possible combinations are AaGG, AaGg, aaGG, aaGg.