A male who has normal vision marries a woman who also has normal vision and is not a carrier for colorblindness. What percentage of their female offspring will have normal vision?Group of answer choices
Question
A male who has normal vision marries a woman who also has normal vision and is not a carrier for colorblindness. What percentage of their female offspring will have normal vision?Group of answer choices
Solution
Colorblindness is a sex-linked trait that is carried on the X chromosome. Since the woman in this scenario is not a carrier for colorblindness, she can only pass on a normal X chromosome. The man, who has normal vision, can also only pass on a normal X or Y chromosome.
Therefore, all of their offspring, regardless of sex, will receive only normal chromosomes and will have normal vision. So, 100% of their female offspring will have normal vision.
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