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Question
Inheritance of total colour-blindness is
Inheritance of total colour-blindness is
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Solution
The correct option is A X-linked
Traits that are determined by alleles carried on the X chromosome are called as X-linked inheritance. One example of an X-linked trait is red-green colorblindness. Let (Xc) represent the recessive allele that causes colorblindness and (X+) represent the normal dominant allele. Females that are X+X+ or X+Xc have normal color vision, while XcXc females are colorblind. Males that are X+Y have a normal color vision while XcY males are colorblind. Thus, option A is correct and other options are wrong.
Traits that are determined by alleles carried on the X chromosome are called as X-linked inheritance. One example of an X-linked trait is red-green colorblindness. Let (Xc) represent the recessive allele that causes colorblindness and (X+) represent the normal dominant allele. Females that are X+X+ or X+Xc have normal color vision, while XcXc females are colorblind. Males that are X+Y have a normal color vision while XcY males are colorblind. Thus, option A is correct and other options are wrong.
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