Consider a dihybrid cross (AABB x aabb AaBb F1 F2 gen.) Which of the following genetic phenomena would result in different F2 ratios from what Mendel reported?
A: Linkage of the "A" and "B" gene loci
B: Gene interaction (epistasis) of alleles of the two genes
C: Incomplete dominance of A and a alleles of the "A" gene
D: A and B
E: All of the above.
Answer: E: All of the above.
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