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Suppose members of a true-breeding strain of salamanders with yellow stripes are crossed with a true-breeding strain with red stripes.Red and yellow are two alleles of the same gene.The resulting offspring have both yellow stripes and red stripes.
-Which dominance pattern is most consistent with the observations?
A) Red stripes are dominant to yellow stripes.
B) Yellow stripes are dominant to red stripes.
C) Red and yellow stripes exhibit incomplete dominance.
D) Red and yellow stripes exhibit overdominance.
E) Red and yellow stripes exhibit codominance.

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Quizplus · Accepted Answer

The offspring having both yellow and red stripes suggest that both alleles (yellow and red) are expressed equally without one being dominant over the other. This is consistent with the pattern of codominance.

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