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4.Principles of Inheritance and Variation
medium
Carrier of genes of colour blindness are present in
A
Father
B
Mother
C
Father and mother
D
None
Solution
(b) A man possesses only one gene for colour vision,
whereas woman possesses two.
The normal colour vision is dominant over colour blindness.
Therefore, only woman will be carrier when she has gene for colour blindness in one $x$-chromosome.
Standard 12
Biology