It MAY be possible but more information is needed about the father. If he is Rh positive then he can be Rh+Rh- or Rh+Rh+.
If the Rh positive father has one Rh+ and one Rh- allele, then 50% of his children will get Rh+ from him (and Rh- from the mother) to be Rh positive, and 50% will get Rh- from him (and Rh- from the mother) to be Rh negative.
So if father is Rh+Rh- and mother is Rh-Rh-:
50% children Rh+Rh- (positive - may cause problems if it is the second child)
50% children Rh-Rh- (negative - will be no problems with a Rh- mother)
BUT if the Rh positive father is Rh+Rh+ then all of his children with a Rh+ from him and Rh- from the mother. In this case all children will be Rh positive.
So if the father is Rh+Rh+ and the mother is Rh-Rh-:
100% children Rh+Rh- (positive - may cause problems if it is the second child)
Hope this is helpful.
I don't agree with those statistics. I think most babies get the positive gene. I believe that if people with negative blood types keep breeding with men with positive blood types the negative blood types will be wiped out. We already only make up 15% of the world's population. For some reason, this is rarely discussed and I have found that free clinics don't even blood type the women. Then they do not get their Rhogam shot as needed and have a child with problems or miscarry that child. For more information:
www.myspace.com/reneeisonegative
reneeisonegative@ Yahoo.com Feel free to contact me with any questions, not an expert, just a mom of three and I have negative blood....been there, done that.
Yes. I'm living proof. You can have a positive Rh factor phenotype (meaning that is what shows when you test for blood type) with one of two genotypes (what the genes show). Genotypes ++ and +- both show up as positive, because the positive is dominant. When you have two parents that are +- and +-, there is a 25% chance of having a child that is ++, a 50% chance of having a child that is +-, and a 25% chance of having a child that is --. The child that is -- is the only one that actually has a negative blood type. The other combinations, ++ and +-, show up as having positive blood types.
Yes. Two Rh positive parents can produce an Rh positive OR Rh negative baby. Parents where one is Rh pos and one is Rh neg can also produce an Rh pos or neg baby.
Only two Rh neg parents will always product an Rh neg baby.
I am a fraternal twin and we have ...0- and 0+
it depends?....what does it depend on?
yes
Rh +
It would all depend on the Dominant and Recessive blood type genes in the mother and father it is near improbable to tell unless you take a blood sample to test the blood type. == A rhesus negative mother and positive father can produce either a rhesus negative or positive child. A type A and type O parental combination will only produce either type A or type O children. So an A- mother and O+ father will normally produce offspring having the possible blood groups of A+ or A- or O+ or O-. See the link for a full explanation.
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.
Yes, the baby could be positive. If the baby is positive the mother needs to get on immuno-suppressant drugs or she will have an immune reaction and her body will try to kill the "foreign object" aka the fetus. Best of luck.
Usually not the first pregnancy, but if the baby is rh positive, during birth some of the baby's blood may cross into the mother's bloodstream and then she will be sensitized and will produce anti-rh antibodies, which could harm the second baby if it is rh positive. There is an injection that is given to rh negative mothers during pregnancy to prevent this reaction.
the baby may be A or O.
Don't see why not - my hubby and I are A+ and A- and son is O+
yes if both are heterozygotes
Yes, each parent has all of the genetic components to produce an AB child, in this instance the A bloodgroup of the father and the B bloodgroup of the mother and, they both are Rh positive .
a positive
Yes, a mother with negative and a father with O positive can have a baby with B positive. If they do, the mother must have blood type B or AB.
Definitely. One Rh positive parent is at least 50% likely to produce Rh positive offspring.
O positive
Yes, a mother with negative and a father with O positive can have a baby with B positive. If they do, the mother must have blood type B or AB.
It's called "positive" and "negative" - yes the "A" father and "B" mother can each give a gene to produce "AB"; The Rhesus gene is either positive or negative so the baby could get either.
no
yes