Suppose that a genetics researcher concludes that the probability of obtaining a double dominant phenotype in an F₂ cross is 9/16.This conclusion can be valid only if one or more assumptions are true.Which assumption is necessary? A) Alleles have an unequal probability of separating into gametes. B) The two genes assort independently. C) The sample size is small. D) The two genes are linked. E) The gene exhibits incomplete dominance.

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The assumption that the two genes assort independently is necessary in order to conclude that the probability of obtaining a double dominant phenotype in the cross is 9/16. If the genes were linked, their inheritance would not be independent and this conclusion could not be drawn.

Suppose That a Genetics Researcher Concludes That the Probability of Obtaining