Color blindness : Inheritance example - Science & Technology

Q.  If a color blind woman marries a normal man
- Published on 06 Jun 15

a. All her daughters are color-blind where as all the Sons have normal color vision.
b. All her sons are color-blind where as all the daughters are carrier.
c. All her sons are color-blind where as all the daughters have normal color vision.
d. None

ANSWER: All her sons are color-blind where as all the daughters have normal color vision.
 
Color blindness is usually a sex-linked condition. The genes that produce photo pigments are carried on the X chromosome; if some of these genes are missing or damaged it causes color blindness.

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