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A color blind man marries a woman with normal vision. The women's father is also

A color blind man marries a woman with normal vision. The women's father is also - Biology Forum

A color blind man marries a woman with normal vision. The women's father is also - Biology Forums. Ask questions and discuss the study of Biology. If you have Biology questions from your homework ask them here!


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Old 07-06-2009, 07:18 PM
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Default A color blind man marries a woman with normal vision. The women's father is also



color blinds...? A color blind man marries a woman with normal vision. The woman's father is also color blind. If they have four children, what is the chance that two will be color-blind sons? will it be 1/4 X 1/4 X 1/4 X 1/4? or is it something else because it is two sons?
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Old 07-07-2009, 12:55 PM
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Default Re: A color blind man marries a woman with normal vision. The women's father is also

* X 1/2 X * X 1/2 The chance of a son getting a colorblind allele from the father is 0%, they get the Y. The chance of getting a colorblind allele from the mother is 50% (Her father passed his colorblind + X to his daughter). Each son has a 1/2 chance of being colorblind. When considering the probability of both events occuring that is 1/2 X 1/2 = 1/4. So there's a 1/4 chance of both sons being colorblind.
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