Q. A normal visioned man whose father was colour blind, marries a woman whose father was also colour blind. Their first child is a daughter. What are the chances of this child to be colour blind

 2720  288 AIPMTAIPMT 2012Principles of Inheritance and Variation Report Error

Solution:

In the given condition the chances of child to be colour-blind is zero percent. It can be understood by the given cross :

Solution Image