Biology
Biology, 19.10.2019 04:30, cargod1

With independent assortment, the ratio of genotypes in the f2 generation of a cross between true-breeding strains (aa bb × aa bb) can be described as 1: 2: 1: 2: 4: 2: 1: 2: 1. to what genotype does the "4" in the ratio refer?

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