If a normal visioned man marries a woman whose father was also colourblind, then his wife would be carrier of this disease if her mother was normal. This trait is passed into children but daughters produced by this couple are carrier not the colourblind. 50% of sons would be colourblind.

Question

Accepted Answer

(a) True. The trait is passed from the father to the children, but daughters are carriers, not colorblind. This is due to the X-linked recessive nature of the disease.

If a normal visioned man marries a woman whose father was also colourblind, then his wife would be carrier of this disease if her mother was normal. This trait is passed into children but daughters produced by this couple are carrier not the colourblind. 50% of sons would be colourblind.

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