In my hematology class we tested to see what our blood types were. And my blood type came out to be O+. But my moms blood type is A+, and my dads blood type is A-. How is this??? Neither of my parents have the blood type O, so how did I end up with O+??? Can someone explain this to me??? Thank You so much!!!
2007-01-09 13:47:24 · 4 answers · asked by atcblue05 6 in Health ➔ General Health Care ➔ Other - General Health Care
Do a punet (sp?) square for blood and Rh type.
A o
A AA Ao
o Ao oo
75% chance of A blood type, 25% chance of O blood type.
oo gnotype produces the O blood phenotype. Your parents must both have an Ao genotype. (This can generally only be found out by blood typing the kids.)
+ -
- +- --
- +- --
50% chance Rh +, 50 % chance Rh -
Keep in mind Rh is a factor that is either present of not. If it is present you are Rh +. If it is absent you are Rh-. Your Mom may be +- or ++ you won't know unless you have a sibling that is negative or unless you know that one of her parents is negative.
For the A, B, and O types. A and B are factors present in the blood. Type O is an absence of both of the other factors. That is why you can be AA or Ao and be typed A. BB or Bo and be typed B. AB and be typed AB. You must have neither A or B to be type O.
2007-01-09 16:06:55 · answer #1 · answered by Elizabeth 3 · 0⤊ 0⤋
Their genotypes are AO rather than AA. This means that they can produce children of O type blood.
2007-01-09 21:54:51 · answer #2 · answered by summer 5 · 0⤊ 0⤋
O is universal. Two "A's" can produce an "O" and 1 Rh- and 1 Rh+ can produce a +
This site explains it well:
http://www.australianpaternityfraud.org/Paternity_blood_type_matching.htm
2007-01-09 21:58:34 · answer #3 · answered by Tiff 5 · 0⤊ 0⤋
youre adopted
2007-01-09 21:51:16 · answer #4 · answered by grinny 2 · 0⤊ 0⤋