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In mice, short hair is dominant to long hair. If a short-hair individual is mated with...

In mice, short hair is dominant to long hair. If a short-hair individual is mated with a long-hair individual and both long-hair and short-hair offspring result, then from looking at the offspring you learn that:

A. the short-hair individual was homozygous
B. the short-hair individual was heterozygous
C. the long-hair individual was homozygous.
D. the long-hair individual was heterozygous.
E. more offspring are required in order to decide.
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Answer #1

Option B

B. the short-hair individual was heterozygous

Explanation is in given below attached image:

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