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Why do rh positive parents have an rh negative baby?
Each person carries two bits of rh imformation, called alleles, and each can be positive or negative. A person is rh+ if they have at least one positive allele. Only if both their alleles are negative are they considered as rh-. When two parents have a baby, they each pass one allele on. So if both parent has one positive and one negative allele, and both passed on their negative allele to their baby, then the baby would be rh negative. The chances of two rh positive parents having a rh negative baby are about 18%.
Rh positive mother a positive baby?
If a person has the Rh factor, then they are positive. If they don't have the Rh factor, they are negative. The Rh factor is dominant, so a mother with it would have an Rh positive baby even if the father is negative for the Rh factor.
What type blood does a negative male and o positive female make?
There's not enough information to give the probable blood groups since no blood group was given for the male. However, an rh negative male and an rh positive female could produce either an rh negative baby or an rh positive baby. The male is definitely homozygous recessive for rh factor, but the female could be homozygous dominant for rh factor, in which case the baby would be heterozygous for rh factor and it would be rh positive. However, if the female is heterozygous for rh factor, there is a 50% chance the baby would be rh positive (heterozygous) and a 50% change the baby would be rh negative (homozygous recessive).
What is the significance of rh blood group in lady of child bearing age?
A pregnant woman is at risk if she is Rh negative and her partner, and in turn, baby are Rh positive. While carrying the baby, the mother's blood, which is Rh negative, may mix with the baby's Rh positive blood. The mother's body will create antibodies to the Rh factor and treat the baby as if it foreign. The body would almost have an "allergic reaction" to the baby, so to speak. The antibodies would start to attack the baby's red blood cells and the baby would develop anemia which could become severe and dangerous. Thankfully screening can determine if a mother is Rh negative and she will be given an injection that will suppress her reaction to Rh positive cells in her fetus.
Can a O negative parent and an RH O negative parent make a positive baby?
yes
Can an Rh negative father and an Rh negative mother have an Rh negative baby?
yes
Can baby be negative if mom is positive and dad negative?
It takes two rh negative parents to produce an rh negative baby.
Why do rh positive parents have an rh negative baby?
Each person carries two bits of rh imformation, called alleles, and each can be positive or negative. A person is rh+ if they have at least one positive allele. Only if both their alleles are negative are they considered as rh-. When two parents have a baby, they each pass one allele on. So if both parent has one positive and one negative allele, and both passed on their negative allele to their baby, then the baby would be rh negative. The chances of two rh positive parents having a rh negative baby are about 18%.
Rh positive mother a positive baby?
If a person has the Rh factor, then they are positive. If they don't have the Rh factor, they are negative. The Rh factor is dominant, so a mother with it would have an Rh positive baby even if the father is negative for the Rh factor.
Mother is o positive and father is o positive Does this mean baby will be o positive?
No. There's a small chance the baby will be O negative--if both parents have an Rh negative (recessive) allele, and the baby inherits this allele from both parents, the baby would be Rh negative. But if the baby inherits the Rh positive allele from either parent, the baby will be Rh positive.
How does Rh factor affect a fetus?
When a mother is Rh negative and her baby is Rh positive, she may develop antibodies to the baby's blood that will cause it to hemolyze
Can a baby have B negative blood if the mother is B positive and the father is A negative?
Either. We know the mother is homozygous recessive rh- rh- for rh factor, so she can only pass on an rh negative allele to a child. However, if the father is heterozygous rh+ rh- for rh factor, he could pass on one of those two alleles to a child. If he passes on the rh+ (dominant) allele, the baby would be rh positive. If he passes on the rh- allele, the baby would be rh negative.
What type blood does a negative male and o positive female make?
There's not enough information to give the probable blood groups since no blood group was given for the male. However, an rh negative male and an rh positive female could produce either an rh negative baby or an rh positive baby. The male is definitely homozygous recessive for rh factor, but the female could be homozygous dominant for rh factor, in which case the baby would be heterozygous for rh factor and it would be rh positive. However, if the female is heterozygous for rh factor, there is a 50% chance the baby would be rh positive (heterozygous) and a 50% change the baby would be rh negative (homozygous recessive).
When a Rh negative mom carries an Rh positive baby the concern for the fetus is?
erythroblastosis fetalis
Do you need to get a shot for your RH factor at every pregnancy?
Yes because if you are RH negative and your baby is positive your body will attack the baby.
If the mother has Rh positive and the father Rh negative are there problems for the baby?
Being Rh Negative implies that you do not have the Rh antibodies in your blood and the genes that are responsible for the formation of the antibodies. If both the Mother and the Father is negative and do not have the genes the baby can only be negative.
Can Rh antibodies of Rh- be detected?
A person who is Rh negative may have antibodies if he or she has been exposed in the past to Rh positive blood. Rhogam will prevent this sensitization in a pregnant woman with negative blood carrying an Rh positive baby.
