Q.

A plant with genotype AABbCcDD is self-pollinated. Provided that the four genes are independently assorting, what proportion of the progeny will show the genotype AAbbccDD?

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a

1/4

b

1/16

c

1/256

d

1/64

answer is B.

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Detailed Solution

As the plant is heterozygous only with respect genes B and C, like in dyhybrid cross, the F2 progeny will be having 1/16 of the individuals with the genotype bbcc. Here it is AAbbccDD. 

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A plant with genotype AABbCcDD is self-pollinated. Provided that the four genes are independently assorting, what proportion of the progeny will show the genotype AAbbccDD?