A) Aa Bb Cc
B) Aa Bb CC
C) Aa Bb cc
D) Aa bb Cc
Correct Answer: D
Solution :As 4 types of gametes are formed, the genotype must have two heterozygous pairs of alleles. Note that each of the given four gametes possesses recessive b allele. Hence, it must be present in homozygous state : bb. Obviously, the remaining two pairs of alleles in the genotype must be in heterozygous state.
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