Principle Of Inheritance And Variation Question 49
Question: A boy is colour blind, in his two sisters one is colour blind and one is carrier (normal). Then who is colour blind in his family [CPMT 1994]
Options:
A) Father
B) His grandfather and mother
C) Mother
D) His grand father
Show Answer
Answer:
Correct Answer: A
Solution:
When a colourblind man marries a carrier woman then half of his sons will be colourblind and rest half normal and half of his daughters will be colourblind and rest half carriers.