Blood Drug Testing

Can my blood type be determined without a test if I know both my parents' blood types?

My dad is O positive and my mom is AB negative.

Public Comments

1. No because of your other family members things like this can skip generations. The only sure way to know is to take the test
2. You could be either type A or B. As for the rh factor, I believe positive is dominant, so you are probably positive.
3. nope, bcoz there are two possible results for the offsprings; A or B. so you have to go for a test.
4. No it cannot be determined...I know my mom is O+...my dad is AB-...I am A+...my little sister is B-....I also know that you cannot be O unless both of your parents are O
5. Yes. All you have to do is have your blood drawn and tested. Short of that, I don't know how old you are but high school science (and probably 7th/8th grade) would have taught you a punnent square. It can't zero in on your exact blood type like a blood test, but it can give you all the possiblities. If you're 17 or over I encourage you to donate blood at a blood bank or American Red Cross blood drive. You can then ask them to send you the results and in the process you may have saved a life! It could also help you in an emergency if you already know your blood type and have to be hospitalized it could save type and cross match time. You are possibly positive because that is dominant, but you can be O, A, B, or AB. I encourage you to check it out for your future needs. When you become pregnant with your own kids, if you are RH - and father of your kids is + you may have to take Rhogam shots.
6. No,you can't know without test. As your Dad's Blood should be marked as oo,and your mother's is AB,your blood may be coded as Ao which is A blood, or Bo which is B blood.
7. With out a test there is no way of being sure of your blood type. The way genetics work when dealing with children a table is the best way to show it. Your father is "i,i" that is the recesive blood type of O. your mother is "IA, IB" A and B are dominant and together make AB. IA / IB -------------- i [ IA,i ][ IB,i ] ------------------- i [ IA,i ][ IB,i ] On the top of the table is your mother and on the left is your father. it is a matter of pairing up in four squares. you have a 50% chance of IA,i making you an A blood type. You have a 50% chance of IB,i making you a B blood type. Then you have a 100% chance of being an O blood type carrier. Meaning you can pass it to your children and if they recieve a recesive "i" from their father they will be O blood type. Rh has to have a test done.