A normal-visioned man, whose father was colourblind, marries a woman whose father was also colourblind. They have their first child as a daughter. What is the chance that this child would be colourbli

Question

A normal-visioned man, whose father was colourblind, marries a woman whose father was also colourblind. They have their first child as a daughter. What is the chance that this child would be colourblind?

TestHub · Accepted Answer

If a normal visioned man marries a woman whose father was also colour blind. Then his wife would be carried of this disease if her mother was normal. This trait passed in to children but daughters produce by this couple are carrier not the colour blind. 50% of sons would be colour blind.

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