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Can 2 parents with b positive blood have a child with o negative blood?
Wiki User
∙ 11y ago
Each person receives an A, B, or O gene from each parent. In this system, the A and B genes are co-dominant and the O gene is recessive. Thus, a person whose genetic type is either AA or AO will have blood type A, those with genetic type BB or BO will have blood type B, and only those genetic type OO will have blood type O. This means that a child with type O blood could have parents with type A, type B, or type O blood (but not with type AB). Conversely, if two parents both have type O blood, all their children will have type O blood.
Another medically important blood type is described in the Rh system. These genes were first discovered in the rhesus monkey, hence the designation Rh. The Rh system is actually far more complex than the ABO system in that there are 35 different possibilities that one could inherit from each parent. These, however, are roughly grouped into positive and negative types. In this system the positive are dominant over the negative. If your genetic type is ++ or +-, your blood type will be Rh positive. Only if your genetic type is -- will you be Rh negative. This means that if both parents have Rh+ blood with the +- genes, they could have children who are ++, +-, or --. In other words, their children could be either Rh positive or Rh negative. Children who are Rh negative can have parents who are either Rh positive or Rh negative.
Two parents who have O positive blood could easily have a child who is O negative. In fact, most children who are O negative have parents who are positive, since the +- combination is so much more common than the -- combination.
Wiki User
∙ 14y ago
Wiki User
∙ 11y agoIndeed they can. If each parent is heterozygous for type b blood, that means they each have a b and an o gene, the two o genes can come together in the offspring to produce an individual with type o blood.
Similarly, if they are each heterozygous for Rh factor--they each have + and - alleles, then the two - alleles can come together in the offspring giving Rh negative.
Wiki User
∙ 15y agoYes, blood type is, within reason, random. It's most likely that the baby will be of the same blood type but I don't think it's definite.
Wiki User
∙ 9y agoNo. The parents only have Rh+ to pass to the infant.
Wiki User
∙ 13y agoYes.
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Can two parents with A positive blood have a child with O negative blood type?
No.
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 '+'
If both parents have positive blood type will the child have a positive?
Probably, because it only takes one positive gene to have positive type blood. But if the positive parents each have one positive and one negative gene, there is a 25% chance their child will be negative.
Can negative and a positive blood type make a positive?
If one of the parents is A positive, the child could be A positive.
Can parents with b positive and o positive blood have a child with O negative blood?
yes it can be possible too as the parents is already with an o blood group..
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 two parents with o positive have a child with a A negative blood type?
it is possible but the child can be a positive
Can a child have a negative blood types if the parents are both a positive?
Yes! 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.
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 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 parents with b negative blood have a child with o positive blood?
If both parents are B- they can only have children who are B- and O-. One would have to be positive in order to have a child with positive blood.
If both parents have positive blood type will the child have a positive?
Probably, because it only takes one positive gene to have positive type blood. But if the positive parents each have one positive and one negative gene, there is a 25% chance their child will be negative.
Can a A positive blood type mother give birth to Rh negative daughter?
Can a child with RH neg blood come from parents that are A positive and A negative
Can negative and a positive blood type make a positive?
If one of the parents is A positive, the child could be A positive.
Can two parents who have positive blood type have a child with negative blood type?
yes they can
