Principle Of Inheritance And Variation Question 493
Question: A colourblind daughter is born when [MP PMT 1998; CPMT 1991; Kerala CET 2002; Orissa JEE 2005]
Options:
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
Show Answer
Answer:
Correct Answer: D
Solution:
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.
BETA
