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Parents have two genes for pos/neg blood type, and only one of them needs to be positive for the parent to have positive blood type. Most positive-blooded people have one positive gene and one negative gene. If both positive parents pass on their negative gene, they can have a child with a negative blood type.

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โˆ™ 2011-05-18 11:32:35
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Q: Can a child have a negative blood types if the parents are both a positive?
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Related questions

If both parents are A positive can a child be B positive or negative?

No. Although the blood type of the child can be either positive or negative, two parents with type A blood cannot have a child with type B blood.


Can parents who have B negative and O positive blood types have a child with O positive blood?

No, they will have a O negative child.


Can parents with b positive and a negative blood have a child with o positive blood?

Yes, you very much can have a child with O positive blood.


Can parents with A positive and B positive blood have an AB negative child?

Yes


Can a child have o negative blood if the parents blood types are b positive and o positive?

no


If both parents are A positive blood types can the child be A negative?

yes its likely that the child can be a negative even though that both parents r a positive.


Can a b positive and a positive have a b negative child?

No. If both parents are positive, the child will be positive. If both parents are negative, the child will be negative. Parents who are negative and positive can have children who are either positive or negative. '+' + '+' = '+' '-' + '-' = '-' '+' + '-' = '-' or '+'


Can a child with o negative blood have the same parents as a child with o positive blood?

yes


Can two parents with A positive blood have a child with O negative blood type?

No.


Can two parents with o positive blood type have a child with o negative blood type?

it is possible but the child can be a positive


Can 2 parents with A positive blood have a child with A negative blood?

No. Two positives can't make a negative.


Can parents with B positive and O positive have a child with O negative blood type?

no

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