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Which parental genotypes below would result in children who are all normal-vision daughters and all colorblind sons?

(XB-allele for normal color vision)
(Xb-allele for colorblindness)

A) xBxb and xBy
B) xBxb and Xby
C) xbxband XBy
D) xbxb and Xby

User Mikkola
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Answer:

Good morning ,

I have a question , what's does the Y stands for !

User Robouste
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