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If two parents have A-negative and O-negative bloodtypes is it possible for their child to be A-positive?
No. Two rhesus-negative parents cannot have a rhesus-positive child.
What blood types would your parents have to be to have a child with A positive blood type?
Discounting rare but possible mutations the following holds true. Parents blood groups A and A, A and B, A and O, B and B, B and O, O and O can produce type O blood in their children. The rhesus factor (Rhesus positive/rhesus negative) depends on the rhesus pairing in the parents as follows: Father rhesus positive, mother rhesus positive or rhesus negative = rhesus positive or rhesus negative Father rhesus negative, mother rhesus positive = rhesus positive or rhesus negative Father rhesus negative, mother rhesus negative = rhesus negative Example: A rhesus positive father and rhesus positive mother of blood type A and O respectively could produce an O positive child, as could a rhesus positive father and rhesus negative mother both of blood group O. Follow the link to an excellent site.
What blood type will the child be with parents blood type O positive father and mother O positive?
The baby can only be an O Blood Group as both parents can only be carrying 'O' type genes. The baby would have a 75% chance of being an O positive and a 25% chance of being an O negative. This is because the mother can only pass on a Rhesus negative gene but the father might either have two Rhesus positive genes or one Rhesus positive and one Rhesus negative. If the first is true the child will only be O positive, if the second is true it could be O positive or O negative depending on which gene the father passes.
What blood type will the child be with parents blood type o negative mother and father o positive?
The baby can only be an O Blood Group as both parents can only be carrying 'O' type genes. The baby would have a 75% chance of being an O positive and a 25% chance of being an O negative. This is because the mother can only pass on a Rhesus negative gene but the father might either have two Rhesus positive genes or one Rhesus positive and one Rhesus negative. If the first is true the child will only be O positive, if the second is true it could be O positive or O negative depending on which gene the father passes.
Can a child be O negative if both parents are O positive and three of the grandparents are O positive and one is B negative?
It is possible as the Rhesus factor is a dominant trait. So, even if the parents have only one allele for the factor, there is a 1/4th chance that the child could get neither allele from the parents and end up as O negative.
If both parents are rhesus positive can they have a negative baby?
Yes, if both parents each have the dominant positive AND recessive negative genes, they have a 1 in 4 chance of having a child with rh-neg blood. Both mother and father would have to pass the recessive gene to the offspring.
Can an o negative blood type father parent an o positive child?
Sure, if the mother is Rhesus (D) positive
If parent both blood group B positive is there any health problem for child?
No. When the mother has a negative blood type and the father has a positive blood type, this could lead to Rhesus factor in the foetus. When both parents are positive blood group, there isn't a risk of becoming rhesus.
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 '+'
Is it possible for a child to have o positive blood when the father has b positive and the mother has b negative?
Yes. Each person has two genes to make up their blood group and rhesus group, one from each parent. For blood groups, groups A and B are dominant over O, and for rhesus groups positive is dominant over negative. If you have one of each, your type will be whichever the dominant one is. Firstly looking at the blood group - an O group child can be born to group B parents if both the mother's and father's blood group genotype is BO. The child has a 25% chance of being BB (group B), 50% chance of being BO (group B) and 25% chance of being OO (group O). Looking at the rhesus group - mother's genotype must be Neg/Neg, father could be pos/pos, in which case the child will always be rhesus positive, or pos/neg where the child has a 50% chance of being rhesus positive, and 50% chance of being rhesus negative.
Can 2 Rh parents have a Rh- child?
No, it can't happen. if one of the parents or both are +, the child will be Positive. I don't know if 2 negatives can have a positive. But i do know that if one of the parents is positive and the other is negative, you can have a either a positive or negative child. (I have twins, one is negative and the other is positive.)
If parents are a and b blood group can the child be o rhesus negative?
Yes. Go to: http://www.canadiancrc.com/Paternity_determination_blood_type.aspx
