2006-11-28 09:48:53 · 8 answers · asked by Jen C 1 in Pregnancy & Parenting ➔ Other - Pregnancy & Parenting
Just as you have two copies of the A, B or O alleles, you also have two copies of the Rh factor alleles. So for two parents who are both Rh positive, they could be either +/-, or +/+. If both of them are +/-, then they could each have passed on the - allele to the child and have a negative (-/-) child.
2006-11-28 10:12:42 · answer #1 · answered by pessimoptimist 5 · 0⤊ 0⤋
Both of my parents are O+ and my brother is O-. The different Rh factor can come from a relative somewhere back in the family tree branches.
2006-11-28 10:09:27 · answer #2 · answered by Anonymous · 0⤊ 0⤋
I think that generally 2 O+ parents will have an O+ child, but my husband is B+ and I am O+, and my son is B-. Weird. Even the doctors thought so, I think they thought I must've had a fling with the mailman or something... ;) So who knows.
2006-11-29 13:07:34 · answer #3 · answered by asleep 2 · 0⤊ 0⤋
The only possibilities are O+ and O- (O- can only be inherited if both parents are heterozygous dominant for their Rh+ phenotype)
2006-12-01 03:57:59 · answer #4 · answered by Lady_Eagle410 3 · 0⤊ 0⤋
You can make a O- child (as the + is dominant), but you could not make a A, B, or AB child.
2006-11-28 09:57:09 · answer #5 · answered by Cris 3 · 1⤊ 0⤋
yes because of other family members may have other blood types
2006-11-28 09:51:35 · answer #6 · answered by Anonymous · 0⤊ 0⤋
i dont see how-there would have to be one parent who has the negative factor....i have rh- blood and so does my son
2006-11-28 10:20:48 · answer #7 · answered by crystald 4 · 0⤊ 0⤋
I'm O+ hubby is O+ our children are both O+ I don't know if anything else is possible, this is just the way it worked with us...
2006-11-29 03:44:00 · answer #8 · answered by tysmommy030502 1 · 1⤊ 0⤋