2007-06-05 11:25:45 · 5 answers · asked by tatu m 1 in Science & Mathematics ➔ Biology
Definitely not. This is because you have a gene for you dads blood type and a gene for your moms blood type. If you do a punnet square if can figure out the probability of your blood type, also the Punnet square tells your all the possible blood types you could have from your two parents.
For example, if your dad is blood type B and your mother is A, then make a 2 by 2 two punnet square using the genotype of your parents. For your dad, this could be Bb, BB or Bi (Bi is the gene that makes the O blood type protein). For your mother: AA, Aa or Ai.
For example, if your dad is Bb and your mom is AA, the you will have an equal, 1/2 chance of having AB, and a 1/2 chance of Ab where A blood type would be dominant. In this example, there is no chance that you will have your dads blood type.
2007-06-05 18:26:06 · answer #1 · answered by madscientist 3 · 0⤊ 0⤋
The answer is NO. They dont HAVE to match but they can rule out a man as a father (or mother) based on the bloodtype of the child and the (alleged) parents. Blood type can't prove paternity, it can only rule it out.
2007-06-05 18:34:27 · answer #2 · answered by K In the House 4 · 0⤊ 0⤋
Of course NOT. The child could have the Mothers blood type. It takes two people you know and two people can have two entirely different Blood types.
My Husband is A positive and I am O negative and our daughter is O negative. Our son something else entirely, but he is adopted.
2007-06-05 18:35:48 · answer #3 · answered by ? 7 · 0⤊ 0⤋
no not always. blood types are always a mixture of both parents.
go to the red cross or web med web pages for more details
2007-06-05 18:34:14 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Nope, mines different from my dad's.
2007-06-05 18:33:18 · answer #5 · answered by Anonymous · 0⤊ 0⤋