﻿ Can parents both o positive have a child with o negative? - ThatsAnswer.COM

## Similar Questions

• Answer: Yes. Regarding blood type, each person has two blood group genes--one from each parent. The blood types sort like this: For blood type O: O/O For blood type A: either A/A or A/O For blood type B: either B/B or B/O For blood type AB: A/B Thus two parents who are A/O (and are therefore blood group A) can have a child who is O/O if they both give the O gene, resulting in blood group O. Regarding Rh type, each parent also give one gene, either Rh - or Rh +. An Rh + person can be either +/+ or +/-: and Rh - person is -/-. To summarize: a mother who is A/O and Rh +/- (and thus A positive) and a father who is A/O and Rh -/- (and thus A negative) can have a child who is O/O and Rh +/- (and thus O positive).

As far as blood type goes, if one parent is O and the other parent is B, the child can be either O or B.
For Rh factor (i.e. negative or positive), if at least one parent is positive, then the child can be either negative or positive. If both parents are negative, then the child will be negative.

So, it is perfectly plausible that it is his child.
• Answer: Not necessarily. It could result in a O neg baby depending on their genotypes.
• Answer: Yes, if the father is heterogeneous positive.
• Answer: Yes. This would mean the mother was AO-- and the father was AO++ or AO+-. In a family like this, all children would have blood type A+, A-, O+, or O-.
• Answer: No. Parents of those blood types can only have A or O blood types.
• Answer: it is possible but the child can be a positive
• Answer: NoIt is only possible for them to have O+ and (if they carry the recessive gene) O-
• Answer: yes child can have blood group o+ o- b+ or b_
• Answer: If a person who is O- were to mate with a person who is AB+, they could not have an O+ child.

They could have a child who is A-, A+, B-, or B+, but not O.
• Answer: yes. even though me and my 4 brothers look alike only 2 of us share the same blood group and both our parents are a-
• Answer: Nope. Type O blood is a recessive trait. This means you have both the dominant and recessive gene for type O blood in both parents. there is no signal (gene) in either parent to cause type A blood in the offspring.

So does this mean you are going to be posting a question about how to find a divorce lawyer?
• Answer: No, group O means having no antigens (markers) on your red blood cells, therefore nothing to transfer to children.
• Answer: Yes, in that "O" is the result of the dominant gene.

# Can parents both o positive have a child with o negative?

• Yes, they can. The Rh negative factor is a recessive trait and the positive is a dominant trait. Parents who are Rh positive can have two possible phenotypes +- or ++. If both parents are +- then they may have children who are ++, +- and --. The -- will obviously be Rh negative. I am proof of this. Both my parents are Rh positive and I am Rh negative. Also two O type parents can only have a O child since the O trait is recessive and they will only carry the gene for O blood.

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• Answer: Yes, they can. The Rh negative factor is a recessive trait and the positive is a dominant trait. Parents who are Rh positive can have two possible phenotypes +- or ++. If both parents are +- then they may have children who are ++, +- and --. The -- will obviously be Rh negative. I am proof of this. Both my parents are Rh positive and I am Rh negative. Also two O type parents can only have a O child since the O trait is recessive and they will only carry the gene for O blood.
• Answer: 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+.

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.
• Answer: Yes. They can have B+, B-, O+, and O-.
• Answer: No, they will have a O negative child.
• Answer: Yes. Negative is recessive.
• Answer: If both parents are B- they can only have children who are B- and O-. One would have to be positive in order to have a child with positive blood.
• Answer: Yes. Blood types are only partially dependant on the parents blood type. The parents geneology is more important and only one parent with the recessive negative rh gene can pass it to a child. as for the type (A, B, AB, O) that again is dependant on the genetics of both parents. It is easily possible. If you are in doubt get a DNA test done. There are many hospitals and clinics who will for this for an affordable, if not free, price.
• Answer: yes it is. one or both of the parents can carry a recessive negative gene and pass it on to the baby.
DISTRIBUTION

RATIOS
O+ 1 person in 3 38.4%
O- 1 person in 15 7.7%

A+ 1 person in 3 32.3%

A-1 person in 16 6.5%

B+ 1 person in 12 9.4%

B- 1 person in 67 1.7%

AB+ 1 person in 29 3.2%

AB-1 person in 167 0.7%

• Answer: Yes, it is possible. Its really hard to explain...but if you were wondering if you are adopetd or something because of this then that is not a good reason to base it off.

Its really not hard to explain, there are two genotypes for the phenotype A

AA or AO, one from dad one from mom so depending on parents genotypes you can get AA ao and oo children
• Answer: No - blood group O is recessive, two O parents can only produce an O child. A Rh+ mother and Rh- father can produce either a Rh+ or Rh- child - Rh+ is the dominant factor.No - blood group O is recessive, two O parents can only produce an O child. A Rh+ mother and Rh- father can produce either a Rh+ or Rh- child - Rh+ is the dominant factor.
• Answer: No. Most of the time a child will get the same blood type as one of the parents. "O" is a very rare blood type and I doubt that if mixed with AA it will make B
• Answer: Parent? or breed?An O + mother and an O+ father who breed and produce offspring will produce an O+ offspring, not a - offspring.Of course, through adoption, they can parent whatever blood type they like. :}Positive (+) means you possess certain antibodies in your blood. So if both of you have the antibodies of course your child will too.I am not a doctor...but this was my understanding when researching this question when I was pregnant. I am O+ as well.