0
The child can only have type O blood. In the ABO blood group, A and B are dominant while O is recessive. All the possible genotypes are: AO, AA, BO, BB, AB, and OO. The first two are type A phenotypes and the next set of two are type B phenotypes. The Rh gene works similarly with positive (+) being dominant and negative (-) being recessive. If both O+ parents were heterozygous (+/- expressing only the + phenotype) there is a one in four chance that the baby will be O-.
What else can I help you with?
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 that are both a negative have an ab positive child?
No. If both parents are A negative the child can only be A negative or O negative. If the child is AB positive at least one parent must have type B or AB blood and at least one must be RH positive.
If both parents are A positive what usually will the child have?
A or O positive or negative
If both parents of a child is posititive can the child be negative?
yes because you either get your parent's traits, the opposite traits, or a little of both but because both parents are positive the child could be positive OR negative
Can O negative parents have an O positive child?
If they are both O negative, no, the child will be O 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.)
Can o positive and a positive parents have o negative child?
Yes. Since the Rh factor is recessive if both parents have a copy of the gene they can have an Rh negative child.
Can parents b positive and O positive have a b negative child?
Yes, it is possible for parents with blood types B positive and O positive to have a child with blood type B negative. This can occur if the parents are both carriers of the negative Rh factor and pass it on to the child.
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 2 A positive parents have an O negative child?
No. O and Rh negative are both recessive traits--both alleles must be that trait before it expresses. The term for an A positive child from two O negative parents is "grounds for divorce."
If both parents are A positive can a child have negative blood?
Yes. If both parents have the recessive gene for Rh negative, a child of theirs could have Rh negative blood. I have two daughters who are Aneg, and both of us are A+.
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.
