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DIA [1.3K]
3 years ago
9

A daughter has hemophilia, a recessive sex-linked trait. Which are possible genotypes of her parents?

Biology
1 answer:
marusya05 [52]3 years ago
5 0

Answer:

D. XHxh and XHY

Explanation:

since this is the only answer with genes that share a common allele, the answer is D.

In order for a recessive gene to be present, the daughter must have gained the alleles of XHXH, which in this case, is a 25% chance. The other two possibilites are XHxh, XHY, and Yxh. To further prove this, a female must have 2 X alleles and to have hemophilia, they must carry 2 H's. If they were to only have one H, they would be a carrier instead of a product.

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