Question

A woman has blood type A.
Her partner has type O.
She gives birth to a child with type O.

What was the chance their child would have that blood type?

Select one:

a. 100%

b. 50%

c. 25%

d. 0%

e. Can’t be determined

A woman has blood type A.
Her partner has type A.
She gives birth to a child with type A.

What was the chance their child would have type A blood?

Select one:

a. 100%

b. 50%

c. 25%

d. 0%

e. Can’t be determined

Answer 1

A woman has blood type A.
Her partner has type O.
She gives birth to a child with type O.

What was the chance their child would have that blood type?

The answer is b. 50%.

Find the below image for exaplnation...

The O child from Type A mother indicates that the mother is heterozygous for Type A. So, the answer is

A woman has blood type A.
Her partner has type A.
She gives birth to a child with type A.

What was the chance their child would have type A blood?

The answer is e. Can’t be determined.

Because A can be homozygous or it be heterozygous. If we know the gene condition we can determine the probability, as with this information we cannot determine the probabiliy hence the answer is Can't be determined.