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Doctor insights on: Can Children Have Different Blood Types Than Parents

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If both parents have b+ blood type, can their child have a different blood group?and if the parents have 2 children, can only one child differ?

If both parents have b+ blood type, can their child have a different blood group?and if the parents have 2 children, can only one child differ?

Yes to both: If both parents are B+, any of their children can be either B+ or O+. Blood type is determined by the presence of either an A or B antigen, regardless of amount., with inheritance from both parents. B+ parents can be either BB or OB,. If both parents are OB, the child can be B+ (inherit a B from either parent) or be O (inherit an O from either) ...Read more

Dr. Al Hegab
90 doctors shared insights

Blood Type (Definition)

Refers to the proteins present or not present on the surface of red blood cells. The types are a, ...Read more


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How can a baby be born with a different blood type than the parents?

How can a baby be born with a different blood type than the parents?

Happens all the time: That's normal and happens all the time. Some combinations are not possible, such as 2 a biological parents having a b baby. ...Read more

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My blood type is completely different from my parents. How is this possible?

My blood type is completely different from my parents. How is this possible?

Need to know : Blood types of all parties. You parents may be blood group a and b and you may be o and that would be normal. Please resubmit your question with blood types of your parents and yours. ...Read more

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My blood type is completely different from my parents. How is this possible? My parents blood type is o+ mine is b+?

My blood type is completely different from my parents. How is this possible? My parents blood type is o+ mine is b+?

Genetics: Ordinarily, two parents both with blood type o cannot have a child with blood type b. There are a few rare ABO alleles, there is the possibility of a lab error, and there is also the possibility that one or both are not your biological parents. Ask each parent separately if you truly want to know and perhaps have trouble -- but decide first whether it's worth it. ...Read more

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Can a child have different blood type than their parents, if one has A+ and O-?

Can a child have different  blood type than their parents, if one has A+ and O-?

Blood type: Your child should be either A or O. Not B or AB. They could be either positive or negative however. ...Read more

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My husband and i both have a positive blood one of our children also has a positive the other o, how can that be? I don't know what our parents blood type .

My husband and i both have a positive blood
one of our children also has a positive the 
other o, how can that be? I don't know what our parents blood type .

A+ : A+ blood type means that one of the 2 blood type chromosomes (one from father and one from mother) carries a and the other carries either a or o: a+ blood = aa or ao. For one of your children to be a and the other 0, each of you must have one chromosome as a and the other as o (from your parents). Since each of you is ao, each child gets either an a or an o chromosome from one of you, so each child could be either aa, ao, or oo. Aa and ao = a blood type; oo = o blood type. ...Read more

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Can two parents with o positive blood type make an a positive child? I've heard different answers

Can two parents with o positive blood type make an a positive child? I've heard different answers

Using : Using the ABO blood typing system- two parents with type o blood would have a baby with type o blood. The baby may or maynot be rh positive. ...Read more

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