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∙ 11y ago
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What is the heterozygous for the A allele?
Heterozygous Aa Homozygous AA, aa
Which blood type is always heterozygous?
AB
Will parents with a positive blood type have children with a positive blood type?
There is 50% that children will be of negative blood type if parents are heterozygous positive. 25% if one parent is homozygous and other heterozygous. 0% if both homozygous.
What is the genotypes of a blood type A?
Blood type A may be AA homozygous or AO heterozygous. This blood type has at least one "A" and no "B."
Can a a blood group father produce an o type child?
An A blood group father can have an O type child. If he does, then he is heterozygous for type A.
How would you represent the genotype for a woman who is hybrid for a type of A blood?
A woman with type A blood may have genotype AO or AA. The heterozygous type is AO.
A child is born with type AB blood what blood must the parents have?
The most likely blood type for the child is A positive - but A negative, O positive and O negative are also possible depending on the genotypes of the parents. If both parents are heterozygous AO, then the child could have either A or O type blood. If either parent is homozygous, AA, then the child must have blood type A. If the parent with positive blood is heterozygous, Dd (+-), then the child could have either positive or negative type blood. If they are homozygous, DD (++), then the child must have positive type blood.
Can you father someone who has type O blood?
A man with any blood type by AB can father a child with type O blood. A parent heterozygous for type A or B may have a child with type O.
Do both parents have to have type a blood to have a child with type a blood?
No. As long as one parent has an A allele (blood type AB or A) and the other has an i allele (blood type O, A* or B*), it is possible to have a type A child. (* means that the types have to be heterozygous)
Can a child be blood Type A and the father blood Type B?
Yes, as long as the father is heterozygous for B (Bi, not BB) and the mother has an A allele (she might be type AB or A).
If both parents have A blood type can they have a child with o blood type?
Yes. Both parents could be heterozygous, that is AO, and pass on the O to their child.
A man heterozygous for blood type A marries a woman heterozygous for blood type B The chance that their first child will have type O blood?
25% for blood type O, 50% for blodd type AB, and 25% for A.
