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Question
A daughter will not normally be colourblind, unless her mother is ___ and her father is ____.
A daughter will not normally be colourblind, unless her mother is ___ and her father is ____.
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Solution
The correct option is A carrier, colourblind
Daughters inherit X chromosomes of father and mother respectively. Since, one X chromosome masks the effect of another X chromosome, a daughter will only be colourblind if her mother is a carrier or colourblind and her father is colourblind.
Daughters inherit X chromosomes of father and mother respectively. Since, one X chromosome masks the effect of another X chromosome, a daughter will only be colourblind if her mother is a carrier or colourblind and her father is colourblind.
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