- Home
- Standard 12
- Biology
4.Principles of Inheritance and Variation
medium
A colourblind daughter is born when
A
Father is colourblind, mother is normal
B
Mother is colourblind, father is normal
C
Mother is carrier, father is normal
D
Mother is carrier, father is colourblind
Solution
(d)For a woman to be colourblind both her $X$ chromosomes should bear genes for the disease; which is possible only when her father is colourblind and her mother is either colourblind or a carrier of disease.
Standard 12
Biology