Principle Of Inheritance And Variation Question 489

Question: A son of a colourblind father and normal homozygous mother marries to a daughter of normal father and heterozygous mother than their children will be

Options:

A) All colourblind sons are male

B) All colourblind sons and daughters

C) Some colourblind and some normal daughters

D) Some normal and some colorblind sons

Show Answer

Answer:

Correct Answer: D

Solution:

The son of a colourblind man and homozygous normal mother will be normal and when he marries the daughter of a carrier mother, which is expected to be a carrier.

The progeny of such a couple will produce 50% colourblind sons and 50% normal sons.



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