So I don't really understand human blood groups
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So I don't really understand human blood groups

[From: ] [author: ] [Date: 12-04-17] [Hit: ]
Someone with type AB blood has no antibodies against type O, since type O does not have antigens on the RBCs, so there is no negative immune response.You are right, but I think you need to understand the difference between co-dominance and incomplete dominance.Its easier to use a plant for incomplete dominance.......
8.False! A person with type O blood is incompatible with a type A donor, because the type O person will have anti-A antibodies which will attack the RBCs in the type A blood and the blood will clot.
9.True. Someone with type AB blood has no antibodies against type O, since type O does not have antigens on the RBCs, so there is no negative immune response.

You are right, but I think you need to understand the difference between co-dominance and incomplete dominance.
It's easier to use a plant for incomplete dominance. Say that red flowers (R) and white flowers (W) are incompletely dominant to each other. If a plant with red flowers (RR) is matched with a plant with white flowers (WW). The flowers will be RW, a mix of red and white, so they will be pink. That's incomplete dominance.
With blood type, A and B are co-dominant, so if a person inherits one type A gene and one type B gene he will have both traits clearly expressed (type AB blood) and not mixed, as with the pink flowers, which are neither red or white but a mixture of both.
I hope this helped!
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