A normal woman whose father was colourblind. marries a normal man. What kinds of children can be exp

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4.Principles of Inheritance and Variation

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A normal woman whose father was colourblind. marries a normal man. What kinds of children can be expected and in what proportion?

A

All daughters normal, $50 \%$ of sons colourblind

B

All daughters normal. all sons colourblind

C

$50 \%$ daughters colourblind, all sons normal

D

All daughters colourblind, all sons normal

(AIIMS-2018)

Solution

$X^{C} X=(50 \%$ carrier daughters)

$X X=(50 \%$ normal daughters)

$X^{C} Y=(50 \%$ colourblind sons)

$X Y=(50 \%$ normal sons)

Standard 12

Biology

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