If someone could help me with this. My husband's blood type is 0- and there's been question about wether his "father" is really his "father."
2006-10-23 06:54:48 · 11 answers · asked by ShellyK 1 in Health ➔ Men's Health
Very possible. An individual's ABO type is determined by the inheritance of 1 allele from each parent. Blood type A has 2 genotypes which has 2 alleles >>AA (alleles A and A) as the dominant gene and AO (alleles A and O) as the recessive gene.
Your children will be either A or O so that makes either A+, A-, O+, or O- considering that both of you can have an Rh+ as dominant and Rh- as the recessive.)
When your child inherits recessive O allele fom both of you it makes genotype OO then the child gets blood type O. If the child inherits the Rh recessive gene which is negative, it makes your child O-.
The inheritance of ABO blood types does not always follow such straightforward rules of inheritance. Despite the fact that the blood types of children are solely determined by inheritance from their parents, paternity in the U.S. and many other nations can no longer be legally established based on conventional blood typing. To do that, it is necessary to compare HLA types and/or DNA sequences. The use of DNA is more accurate in determining paternity, but it is also more expensive than HLA typing. ♥
Check out this page for reference:
http://bloodanatomy.org/types.html
2006-10-23 08:35:11 · answer #1 · answered by ♥ lani s 7 · 3⤊ 0⤋
This is possible. The child can be A-, A+, O-, or O+. The best way is to get a blood test to determine paternity. Check out the following site to help you. If you click on blood type calculator, you can put in the types to see what the child can be. Good Luck.
2006-10-23 06:59:30 · answer #2 · answered by jalwerdt 2 · 1⤊ 0⤋
Very possible. We all carry 2 genes. The possiblies are A, B, and O. The possibilities for type A and AA and AO. If both parents are AO then it is highly possible to have a child of OO which comes out to Type O. + and - are the Rh factors. They don't determine blood type.
Blood type is not a good way for paternity tests. It can only exclude not conclude. They should do a DNA test.
2006-10-23 06:57:02 · answer #3 · answered by christigmc 5 · 0⤊ 1⤋
It is possible that one of you is a carrier of the 0- blood type. The best thing to do if any doubt is to get a DNA test.
2006-10-23 06:57:50 · answer #4 · answered by kelliemag 3 · 3⤊ 1⤋
yes the child of two A type blood can either be A or O.
2006-10-23 06:59:49 · answer #5 · answered by cookiesandcorn 5 · 2⤊ 1⤋
You have two parts to your blood group, one from each parent. Someone who is group "A" could be either "A-O" or "A-A", as "A" is dominant over "O". Therefore if both parents are"A-O", then their children could be any one of "A-A", "A-O" or "O-O" (this being the only combination that produces blood group "O").
2006-10-23 07:02:03 · answer #6 · answered by rosbif 7 · 1⤊ 0⤋
I asked my OB about blood type once. My hubby and I are both A+ and we know at least one of our kids is A+. I asked it the other two would be as well. She said not necessarily. They could be A+, they could also be O+ or O-.
2006-10-23 06:57:44 · answer #7 · answered by tessasmomy 5 · 1⤊ 1⤋
Yes it is possible, a 1 in 16 chance if the genotypes are right.
2006-10-23 06:59:53 · answer #8 · answered by Anonymous · 1⤊ 1⤋
Sounds like his "father" isn't the sperm donor, doesn't it? How sad if his mother wasn't able to be honest with him. The only way to be really sure is a DNA test.
I've never heard of there being "AO" blood but A's can have O's. However, two positives make a positive and NOT a negative. I've never heard of two positives making a negative.
2006-10-23 06:57:21 · answer #9 · answered by Anonymous · 0⤊ 6⤋
http://anthro.palomar.edu/blood/ABO_system.htm
2006-10-23 06:59:23 · answer #10 · answered by ♥cinnamonmj♥ 4 · 0⤊ 0⤋