If a couple are both heterozygous for brown eyes, what is the probability of them having a blue eyed child? 50% 0% 25% 100% 75%

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asked Jan 12, 2019 6.8k views

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Kevin Pimentel · Answer 1 · 2019-01-17T03:01:43+0000

Let’s say that the alleles are B’s. The alleles are different, so it would be Bb. Cross two of them to get BB, Bb, Bb, and bb. Blue eyes are homozygous recessive, or bb. There is a 1 in 4 chance of having a blue eyed child, or 25%.

If a couple are both heterozygous for brown eyes, what is the probability of them having a blue eyed child? 50% 0% 25% 100% 75%

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