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4.Principles of Inheritance and Variation
normal
$A$ normal woman, whose father had colour blindness, married a normal man. What is the chance of occurrence of colour blindness in the progeny?
A
$25\;\%$
B
$50\;\%$
C
$100\;\%$
D
$75\;\%$
Solution
$25\;\%$ of progeny will be colour blind
Standard 12
Biology
