A man with type A blood, whose father was colorblind with type AB blood and whose mother was color - blind with type B blood, marries a woman whose father had normal vision and type O blood and whose mother was colorblind with type AB blood. From this union, what are the chances of the couple producing a boy with colorblindness?

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Biology

26 December, 16:00

A man with type A blood, whose father was colorblind with type AB blood and whose mother was color - blind with type B blood, marries a woman whose father had normal vision and type O blood and whose mother was colorblind with type AB blood. From this union, what are the chances of the couple producing a boy with colorblindness?

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Mauricio Morse · Answer 1

50% chance of their son being colorblind

Explanation:

A Punett square for the man's mom and dad shows that he definitely has colorblindness and his genotype is XcY

A Punnett square for the woman shows she is a carrier for colroblindness and her genotype is XcX

The chance of having a son is 50% and the chance of that son having colroblinness is 50%