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What blood type is most likely to be inherited by a child if one parent has blood type AB and the other parent has blood type B (BO)?

(1 point)
Responses

Blood type A
Blood type A

Blood type B
Blood type B

All have an equal chance
All have an equal chance

Blood type AB

1 answer

To determine the possible blood types of a child from parents with blood types AB and B (genotype BO), we can analyze the genetics.

Parent 1 (AB) can pass on either the A allele or the B allele. Parent 2 (B, genotype BO) can pass on either the B allele or the O allele.

The possible combinations of alleles from these parents are:

  1. A (from AB) + B (from BO) = AB
  2. A (from AB) + O (from BO) = A
  3. B (from AB) + B (from BO) = B
  4. B (from AB) + O (from BO) = B

Thus, the possible blood types for the child are:

  • Blood type A
  • Blood type B
  • Blood type AB

There are no other blood types possible in this scenario.

  • Blood type A: 1 outcome
  • Blood type B: 2 outcomes (BB or BO)
  • Blood type AB: 1 outcome

In this case, blood type B occurs with a higher probability.

Therefore, the most likely blood types a child could inherit from these parents are A, B, and AB, but since blood type B appears more frequently, it is the most likely.

So the answer is: Blood type B.