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Your parents are either AA or AO (A is dominant, O is recessive) and therefore gave you an A or an O. If both parents gave you an A, you are AA and therefore A. If one gave an A and one an O, You are AO but still an A. If both gave O you will be an O.
Does that make sense?
And to further confuse matters, the RH factor can also be positive (dominant) or negative (recessive), much to the consternation and confusion of my first OB.
I'm O negative (found out when I gave blood, and confirmed when I was pregnant for the first time), and both of my parents are O positive. My OB insisted that my father could not really be my father, because RH factor is inherited. I tried to explain dominant/recessive genes to her, but she looked at my blankly and said "no, that's impossible."
So I'm O neg, my DH is A pos, and I'm pretty sure that both of my kids are A positive, if I'm remembering what the nurses in the hospital told me after they were born.
I'm O-, the Universal donor. I feel very stongly about donating, since I can give to everyone. Only bad thing is that I can only receive from O-. I was visiting a friend the other day who is terminally ill with cancer and I mentioned that I had donated platelets in the past and she got excited that I did this because she was twice the recipient of them. So, I'm going again on Saturday because she motivated me to do so.
I strongly urge everyone(who is healthy and of weight and age) to donate, you really can save a life!
When I was pregnant with my first, I had a blood test to find out my type. I'm AB-. My husband's O+, so I had to have a shot to prevent antibodies from causing problems with future pregnancies.
I'm O positive (the universal donor!). Unfortunately, I was anemic the last time I tried to give blood. We tested for our blood type in science class back in middle school, I think. Even so, I think they test all women who are pregnant (because the negative/positive thing can cause problems if the baby is different from the mom).
One positive reason to know your blood type is if you donate. O-Negative is universal, so if you have that type, you may want to donate on a regular basis. I do, and it is a great feeling to know you are helping someone. You can give once every two months. You can order that blood test online cheap
am always paranoid that I have some rare blood type that will make it difficult for me to seek treatment
That's what universal donor blood (O pos) is for. You can thank people like me who have lots of it running through their veins, and freely donate.
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