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  3. an apparently healthy couple has one normal daughter and then...

Question: an apparently healthy couple has one normal daughter and then...

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  1. An apparently healthy couple has one normal daughter and then a son who develops hemophilia, an X-linked (also called "sex-linked") recessive disease. Based on Santrock's discussion of chromosomal and gene-like abnormalities and in combination with your understanding of dominant-recessive genes and genetic imprinting, what are the chances that the boy's sister is a carrier of hemophilia? Create a Punnett Square to determine the exact percentage.

Answer:

Punnett Square:

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