Solution-Heterozygous for two autosomal genes

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Solution-Heterozygous for two autosomal genes

Imagine two parents are both heterozygous for two autosomal genes. Assuming independent assortment, what proportion of their offspring are expected to have the same phenotype (for these two traits) as the parents?

A) 0.25

B) 0.3164

C) 0.4375

D) 0.5625

E) 1.0 (all of them)

Please explain/show work

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