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Red-green color is inherited as a sex linked recessive trait If a color-blind woman marries a man with normal vision what would be the expectes phenotypes of their daughter?
Wiki User
∙ 11y ago
Zero chance for any daughter (she needs an X from mom and an X from dad and if dad is normal, then the daughter will only receive the normal X from him. So even if she gets a colorblind X from mom, she will not be colorblind).
50% chance for sons. Dad only contributes an X to the son. But mom can give either a normal X or a colorblind X. So there's a 50% chance of him being colorblind.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoThe above PHASE should be improved upon to find out the exact QUESTION.
If a female is colour blind or to use the correct term COLOUR DEFECTIVE VISION (that way people will think we are NOT blind or do not see any colours at all?) then all the MALES WILL BE CDV AND ALL THE FEMALES WILL BE CARRIERS.
For a FEMALE to be CDV!
You need a CDV CARRIER (recessive gene) female plus a union with a CDV male and that will produce a 50/50 chance the MALE off springs will be CDV and 50/50 chance the female off springs will be either COLOURBLIND or a recessive carrier.
There is a 1:10 chance a MALE will be CDV and the above odds for a female to CDV is about 1:200.
HOWEVER WHAT IS NOT WELL KNOWN IS THAT TO HAVE THE ODDS OF ABOUT 10% ALL FOR A MALES TO BE "COLOUR BLIND" YOU HAVE TO HAVE ABOUT 20% OF THE TOTAL FEMALE POPULATION TO BE CARRIERS.
(ABOUT 1.8 MILLION CARRIERS AUSTRALIA)
WHAT IS BEING DONE TO INFORM FAMILIES OF THOSE ODDS?
If you would like help, INFORMATION, teaching strategy sheets or practical support contact The Colour Blind Awareness and Support Group Australia
Wiki User
∙ 15y agoThe trait for rg color blindness is carried on the Y chromosome and not the X. Therefore, since females are XX they could not possibly ever have the trait.
Anonymous
Wiki User
∙ 13y agoBoth parents must have had the recessive gene.
Wiki User
∙ 11y agoHe can't (unless there is a mutation).
Wiki User
∙ 13y ago50%
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