Answer to Question #106086 in Genetics for Sophie Nelson

Question

Assume a male with type O blood mates with a female who has type A blood. The female's mother had type A blood and her father had type B. What is the probability that their first child will have type A blood? What is the probability that their third child will have type O blood?

Answer 1

Parents of the female:

G: AA(A0) (mother) x B0 (father)

F1: A0 (female)

G: 00 (male) x A0 (female)

F1: A0, 00 (children)

50%:50%

The chances of having a specific blood type will be the same with every kid and will not depend on its ordinal number

So it will be 50% for the first child to have type A blood

And 50% chance for their third child to have type O blood