OBJECTIVE LIFE SCIENCE
GENETICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Red-green color blindness is an X-linked recessive trait. A red-green color-blind woman and a red-green color-blind man have a son. What is the probability that the son is also red-green color-blind?
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0%
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25%
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50%
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100%
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Explanation:
Detailed explanation-1: -So either X chromosome that the male offspring inherit from the mother will have the mutation. For this reason, there would be a 100% chance of any male offspring having red-green color blindness.
Detailed explanation-2: -Red-green color blindness is a sex-linked recessive trait in humans. It is caused by a genetic mutation on the X chromosome. It is a recessive trait, and males are more likely to be affected because males have only one X chromosome.
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