2007-04-18 23:19:29 · 8 answers · asked by eddyg30 4 in Science & Mathematics ➔ Biology
There is a problem, the father is already passed away 20 years ago. I try to collect information as much as possible to assure passing the right information to those who concern.
2007-04-19 00:09:24 · update #1
No, it is not...Unles there are some blunder of the analysis lab, (please repeat test in a different lab), it is genetically impossible, to get an antigen (blood type) that does NOT exist in one of the parents.
In your question, the AB type, can only be explained by a father with AB or B group (you see, sometimes, we inherit one or both alleles each from each parent) for example if the father is A and Mother is B or, mother is AB and father A or B, then the AB group will appear in the offspring with any of those combinations...
Something is wrong here,
2007-04-19 00:12:21 · answer #1 · answered by Sehr_Klug 50 6 · 1⤊ 0⤋
No, unless the B antigens on the father are particularly weak, and he is really group AB. Or the mother is really group B, with very weak expression, so tested as group O.
Otherwise, there is no group B antigen gene to be inherited.
So, I'll change my answer to - possibly.
Retest with very sensitive reagents from a reference laboratory.
Addition: If the parent's blood group was done more than twenty years ago, I would suggest that she was, in fact, group B, with a very weak expression of B, or she was incorrectly blood-typed. The testing sensitivity has improved one hundred-fold over the last twenty years.
Assuming parentage is not in question, this seems the likely answer. I cannot see how a Group O mother can give birth to a group AB child, she must have contributed the B group. The only other option is that the child has been swapped in hospital.
Disputed paternity can happen - but disputed maternity?
2007-04-19 06:25:47 · answer #2 · answered by Labsci 7 · 0⤊ 0⤋
Nope...ask the postman.
To have AB you need one parent to be A and the other B. (or both parents AB).
The only types of blood from the A (which is either AA or AO) and O (which is O) is A or O...no other blood types are possible.
2007-04-19 06:50:18 · answer #3 · answered by mareeclara 7 · 0⤊ 0⤋
99.9% nope it is not possible.
unless there was some sort of mutation leading to the formation of gene sequence responsible for coding antigen B. However the possiblity is like 1 in a trillion square.
2007-04-19 06:25:10 · answer #4 · answered by shakkill 2 · 0⤊ 0⤋
mine is O my exwifes is A and my little girl is AB and the blood test says she is really mine
2007-04-19 06:31:09 · answer #5 · answered by heyvoto 2 · 0⤊ 0⤋
no... it the child would eaither be a blood type a or a blood type o....
2007-04-19 06:37:04 · answer #6 · answered by PcH 2 · 0⤊ 0⤋
what is your blood minor type?
2007-04-19 06:26:55 · answer #7 · answered by Dale H 1 · 0⤊ 0⤋
nope , child is illegal
2007-04-19 06:23:14 · answer #8 · answered by Anonymous · 0⤊ 0⤋