Assume that a dihybrid F2 ratio, resulting from epistasis, was 9:3:4. If a double heterozygote was crossed with the fully recessive type, what phenotypic ratio is expected among the offspring?
A) 1:2:1 B) 1:1:1 C) 12: 3: 1 D) 9:3:4 E) 1:1:2
Answer: E
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