3) Red-green color blindness is caused by a sex-linked recessive allele. A color

Question

3) Red-green color blindness is caused by a sex-linked recessive allele. A color-blind man marries a woman with normal vision whose father was color blind. What is the probability that they will have a color-blind daughter? What is the probability that their first son will be color-blind? (Note the different wording in the two questions.)

Explanation / Answer

the chances a daughter would be colour blind are very low ~a son would probably have a 50% chance ~it appears to affects males more than females~also colour blindness is of very many types~some people do not even know they are . this is one of the better guides~>http://science.uniserve.edu.au/mirror/bi… there are many others http://uk.search.yahoo.com/search?p=colo… i am colour blind (red/green) but because you are born with it ,It is not till you have a"test " that you find out~i found out when i went for a prescription for reading glasses

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