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50%AnswerColourblindness is a sex-linked recessive mutation i.e. the mutation is carried on the X chromosome.

If a colour blind man married a carrier woman they could produce a carrier daughter, a colour blind daughter, a normal son or a colour blind son. The probability of each phenotype occurring is 25%.

If XC represents the normal allele for seeing colour and Xc represents the colour blind allele the genotypes of the possible offspring would be as follows:

Carrier daughter = XCXc

Colour blind daughter = XcXc

Normal son = XCY

Colour blind son = XcY

This information is incorrect. In fact a woman can be color blind. My mother is color blind as are my brothers. My sister and I are not though we carry the gene. I have two daughters and one is color blind and the other is not color blind.

The information I gave is not incorrect - I have included the possibility of that 'mating' producing a colour blind female child.

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12y ago
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12y ago

color blindness is sex linked and x-chromosomal recessive.

so if a man has has it and a women carries it the cross would be AA x Aa

and the results would be Aa, Aa, AA, AA. so therefore the female would either get it or be a carrier- a 50% chance. and a male would get the colorblindness

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11y ago

0 percent. for the daughter to be colorblind, she needs 2 "blind" alleles. the father will supply a normal allele, but the mother may give her daughter the "blind" allele. If it is a daughter, the chances of being a carrier is 50%, the chance of being normal is 50%. Both scenarios will not cause colorblindness

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14y ago

A very ambigous question, it depends whether the mans's two alleles are dominant, one dominant one recessive, or both recessive. If both dominanat then they will be colour blind, If one is dominant then out of every four children one will be colour blind, If he possese two alleles that are recessive none of his offspring will be colour blind.

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Q: Man who is color blind marries a woman not colorblind and doesn't have recessive allele will their children be carriers of the color blind allele?
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