sex-linked

Genetics as it applies to evolution, molecular biology, and medical aspects.

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Tommy
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sex-linked

Post by Tommy » Mon Jan 16, 2006 11:01 pm

If two normal visioned parents have a color-blind son,
what are the parents' genotypes?
What are the chances that their daughter will be color-blind?

ggangtong81
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Re: sex-linked

Post by ggangtong81 » Mon Jan 16, 2006 11:33 pm

Tommy wrote:If two normal visioned parents have a color-blind son,
what are the parents' genotypes?
What are the chances that their daughter will be color-blind?


father's genotype is XY with no disease.
mother's genotype is X'X.
so when they mate, X' from mother side mate with Y from the father's side mate, making a a colorblind boy.
the daugthers will not be colorblind, but a carrier.

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MrMistery
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Post by MrMistery » Tue Jan 17, 2006 7:16 pm

Yeap, chance to have a color-blind daughter are 0%
"As a biologist, I firmly believe that when you're dead, you're dead. Except for what you live behind in history. That's the only afterlife" - J. Craig Venter

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