My mother has A+ blood and my father is has O+. Is there a way to work out my blood type without getting a test?
by 
gung-ho
ANSWERS: 1
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The only way to determine your blood type is through testing. There are four basic blood groups (A, B, AB, and O) and two antigens (positive and negative Rh factor). These may combine as shown below: ===== ===== Group Genes ===== ===== A AA or AO B BB or BO AB AB O OO ======= ======== Parents Children ======= ======== O+O O O+A O or A O+B O or B O+AB A or B A+A O or A A+B O or A or B or AB A+AB A or B or AB B+B O or B B+AB A or B or AB AB+AB A or B or AB ======= ======== Parents Children ======= ======== +ve + +ve +ve or -ve +ve + -ve +ve or -ve -ve + -ve -ve If your parents are O+ and A+, you could be O+, O-, A+, or A-.
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