2006-11-27 18:34:10 · 8 answers · asked by Anonymous in Pregnancy & Parenting ➔ Pregnancy
Your baby could be either B+, A+, or AB+. Yes, there is a chance of a recessive O popping up, but the odds are so remote I wouldn't seriously consider it.
Claudine Crews CPM, LM
2006-11-27 18:45:07 · answer #1 · answered by claudineintexas 4 · 0⤊ 0⤋
B positive is a dominant gene. for blood type there are three different possibilities - A, B, and O. Everyone has two different genes, one from mum one from dad, if a gene is dominant it shows up in the persons appearance or characteristic, in this case the blood tests, so it is expressed. If a gene is codominant it is expressed at the same time as the other gene. A and B are co dominant so if you have one A gene and one B gene you will be AB blood type. O is recessive, so if you have one gene for O and one for B you will be a B blood type, A is the same. Since you are B blood type, you have one gene for B and the other one is either an O or a B (we can rule out A because you arent AB blood type) and your wife has one gene for A and the other could be A or O. This means that your child can be any blood type including an O since both you and your wife could carry that gene. There is at most a 25% chance your child will be an O blood type, and at least a 25% chance your child willl be an AB. you can work this out be drawing a punnet square, this looks like a noughts and crosses grid and shows all the different gene combinations possible and since both you and your wife are + the child will be +.
2006-11-28 02:52:14 · answer #2 · answered by queen_chelley 1 · 0⤊ 0⤋
There is a pattern but it's more efficient if know whether your and your wife's blood type is recessive or dominant B and A, respectively. It's not difficult to determine what your offsprings' blood types will be but it can just can get complicated because there are multiple alleles (which are versions of the same gene) that control blood types.
2006-11-28 02:45:43 · answer #3 · answered by SweetestDownfall 2 · 0⤊ 0⤋
AA+BB= 50% chance of being AB, 25% chance of A, and 25% chance of B, assuming that both of you are homozygous for A and B. If you have AO or BO, the O is recessive, so you would have whatever dominant type is attached -A or B- and the percentages change.
AO+BB=50% chance of AB and 50% chance of B.
BO+AA=50% chance of AB and 50% chance of A.
AO+BO=25% chance of AB, 25% chance of A, 25% chance of B, and 25% chance of O
In other words, if you want to know for sure, get them tested.
P.S. Smunfifa- Your kid was born O because your husband is homozygous for the O recessive gene and has OO and you must have BO in order to have an OO blood type child. It is not just either parents blood type, but the combination of one of each
2006-11-28 02:45:43 · answer #4 · answered by dude 2 · 0⤊ 0⤋
It all sort of depends on what types the grandparents and great grandparents are/were.
My husband and I were both A + and then our son was born A -
When we wondered how this happened we found that my Mother was O- and His Father was A- and probably down the line there were more negatives: hence our son picked up the recessive gene
2006-11-28 02:39:25 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Probably a positive too, but there are recessive genes that could pop up.
2006-11-28 02:38:14 · answer #6 · answered by Anonymous · 0⤊ 0⤋
it will be a or b. the child will inherit from one of its parents. My husband is B + and I am 0+, my daughter was born 0+
2006-11-28 03:42:41 · answer #7 · answered by Mom_of_two 5 · 0⤊ 0⤋
yeah there is a pattern....but we need to know first u have O in ur DNA.Is someone on ur parents an O bloodtype??If there is,ur kid might be A,AB,B or O all 25%
if u don`t have,ur kid can be,B25%,AB50% and A25%
2006-11-28 02:45:14 · answer #8 · answered by lara 3 · 0⤊ 0⤋