If its possible father B+ and mother O+ = a baby O negative?

Answer 1

Yes.... Its Possible..
A, B & O are Blood Groups and + or - are Blood(Rh) Types...

There is a pair of Gene which codes for Rh D antigen, which indicates + or - of a blood group, which is known as Rh Typing.
The Gene having Rh D is represented by "D", Occurrence of single D is sufficient for +Ve blood type.
Gene without Rh D is represented as "d" and needs 2 genes to get expressed.

Understand this:.. In order to get +Ve blood type you should have at least 1 D (capital D).. Eg. +Ve blood type can be either (Dd) or (DD).... and -Ve is (dd) only....

Consider Dad & Mom as Parent1 or Parent2 or vice versa.. Take Cross Product....

Both the Parents +Ve Blood type:
1. Parent1 +Ve (DD) x Parent 2 +Ve (DD)= Children: +Ve (DD)Blood type.. so only +Ve types.
2. Parent1 +Ve (Dd) x Parent 2 +Ve (DD)= Children: +Ve (DD) or +Ve (dD) so only +Ve types.
3. Parent1 +Ve (Dd) x Parent 2 +Ve (Dd)= Children: +Ve (DD) or +Ve (Dd) or -Ve (dd) Here there is a chance of getting -Ve type where both the parents are Rh +.. This might be the condition of which you asked here....

One Parent Being Rh -Ve and other being +Ve:
1. Parent1 -Ve (dd) x Parent 2 +Ve (DD)= Children: +Ve (dD) or +Ve (Dd)
2. Parent1 -Ve (dd) x Parent 2 +Ve (Dd)= Children: +Ve (Dd) or +Ve (dD) or -Ve (dd)

Both Parents being Rh -Ve type:
1. Parent1 -Ve (dd) x Parent 2 -Ve (dd)= Children: -Ve (dd) so Only -Ve type here.

The Slide tests which routinely done sometimes may not determine the exact Rh type.. In such cases Coomb's test is done to confirm the Rh Type.....


Similarly for ABO Groups there is a pair of gene which may be 2 of ( IA, IB, Io) in all permutations..
(IA, IA) and (IA, Io) gives A group.
(IB, IB) and (IB, Io) gives B group.
Only (Io, Io) gives O group.

There is also a condition called "Bombay Blood Groups" where there is problem in expression of ABO types...

There are many other systems of blood grouping other than ABO system.. These include LMN, Lewis, etc.. But these are not so significant and very rare to cause transfusion reactions and hence not routinely tested...
The Concept of "Universal Donor(O group) & Universal Recipient(AB Group) is not accepted due to presence of Rh & other unidentified antigens.. So all the blood samples need to be cross matched before transfusion...

Answer 2

My parents are both positive. Mom's A+ dad's B+, my oldest sister is B-! My mother tells her to get checked every time she's been pregnant, because it just doesn't seem right to her (being a medical professional). The oldest has had 5 babies and she was still Rh neg. every time. Stranger things have happened. It's not very likely, but possible just the same!

Answer 3

I am a nurse. The Blood Type O is possible. However, the negative is not possible with both parents being positive.

Answer 4

Yes. Ihave had experience of seeing parents that are both white and their child is black yet the wife has NOT had an affair, it is a throw back from one of the ancestors. So yes, the blood type you mentioned is very possible indeed

Answer 5

"Hello Thats Not Negative Thats A Baby Girls.. Lolzzzzzz.

Answer 6

Its a toss up what the infant's blood style would be yet i'd pay interest super mom has O- their would desire to be skill problems with destiny pregnancies if the infant has a + blood style.

Answer 7

The presence or absence of antibodies (blood typing) is not carried on the genes so it's not inherited.

Answer 8

Yes. The blood type does not mean anything. It is just a type.

Answer 9

There is no problem if both the parents are positive.

Answer 10

yes