how many blood groups are there and what allele they carry
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There are 4 main blood groups (types of blood) – A, B, AB and O. Your blood group is determined by the genes you inherit from your parents. Each group can be either RhD positive or RhD negative, which means in total there are 8 blood groups.
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0
Answer:
there are 4 blood groups
A,
B,
O,
AB
A person's blood group is determined by a pair of genes, one gene inherited from each parent. Each blood group is identified by its own set of molecules (called antigens), which are located on the surface of red blood cells.
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