Kamar wants to know his mother's blood type. Kamar knows that his blood type is AB and his father’s blood type is heterozygous A. What can Kamar assume about his mother’s blood type?(1 point)

Question

Responses

Kamar’s mother must be either AB or B because blood types AB is considered codominant
Kamar’s mother must be either AB or B because blood types AB is considered codominant

Kamar’s mother must be either A or O because blood type AB is considered incomplete dominant.
Kamar’s mother must be either A or O because blood type AB is considered incomplete dominant.

Kamar’s mother must be O because the recessive allele allows for Kamar to get type A from his father
Kamar’s mother must be O because the recessive allele allows for Kamar to get type A from his father

Kamar’s mother must be AB because blood type AB is inherited from one parent

Answer 1

Given that Kamar has blood type AB and his father's blood type is heterozygous A (which can be either AA or AO), we can analyze the possible blood types for Kamar's mother.

1. Kamar's blood type AB means he has one A allele from one parent and one B allele from the other parent.
2. Since his father has type A, the possible alleles he could pass to Kamar are either A (from AA genotype) or A or O (from AO genotype).

However, for Kamar to have the B allele, it must come from his mother. This means that Kamar's mother must have at least one B allele.

The possible blood types for Kamar's mother, therefore, could be:

• AB (which has A and B alleles)
• B (which has B and either B or O alleles)

From this analysis, we can conclude that Kamar's mother must be either AB or B.

So the correct response is:

Kamar’s mother must be either AB or B because blood types AB is considered codominant.