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Can man and a woman who both have blood type O+ produce a child who has blood type O- ?
My son's mom has blood type O+. I have blood type O+. My son has blood type O-. How is this possible?
4 Answers
- ktLv 71 decade agoFavorite Answer
The rhesus factor is actually a protein that may or may not be inserted on the membrane of red blood cells. Positive is dominant. A person who is ++, or a person who is +- would both produce the protein.
How could a Rhesus negative child be the offspring of two Rhesus positive parents? If both the husband and wife are heterozygous (have one chromosome + and the other -), they have a 25% chance of producing a child who is Rh-.
- Asst ProfLv 71 decade ago
If two parents are each heterozygous for the Rh antigen allele
(Rh+Rh-), there is a 25% chance of producing an Rh- child.
- Anonymous1 decade ago
hell no paternity test
ether that or someone is wrong about the rh factor on in there blood
- 1 decade ago
it also depends on ur parents blood type that skipp you/her and went straight to him.
