AIPMT PRELIMS 2005 Botany Sex-linked Inheritance MCQ Question
A woman with normal vision, but whose father was colour blind, marries a colourblind man. Suppose that the fourth child of this couple was a boy. This boy:
must have normal colour vision
will be partially colourblind since he is heterozygous for the colourblind mutant allele
must be colourblind
may be colourblind or may be of normal vision
Correct Answer
Detailed Explanation
The boy will inherit the X chromosome carrying the colorblind allele from his mother and the Y chromosome from his father, making him colorblind.
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