Which ratios would indicate linkage and not independent assortment? Check all that apply.

With independent assortment, a typical dihybrid cross gives a 9:3:3:1 ratio, while a testcross gives 1:1:1:1. Choice B matches the dihybrid ratio, so it does not indicate linkage. The 8:8:0:0 and 12:2:2:1 ratios differ from those expected ratios, which can indicate that linked genes are inherited together more often than independently assorting genes.

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