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All races of man have same blood group. Why?? |
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Answer» \u200bBlood group differs from one individual to another. Two or more people in a race can have same blood group, but not all. Determination of human blood group:Human blood group is controlled by alleles. It is determined by the presence or absence of specific antigens and antibodies in the blood. There are four types of blood groups – A, B, AB and O containing either of the two antigens (A and B) and two antibodies (a and b). Given chart may express the presents and absence of antigens and antibodies more clearly. No, not all races of man have same blood group. Two or more people in a race can have same blood group, but not all.Human blood group is controlled by alleles. It is determined by the presence or absence of specific antigens and antibodies in the blood. There are four types of blood groups – A, B, AB and O containing either of the two antigens (A and B) and two antibodies (a and b). Given chart may express the presents and absence of antigens and antibodies more clearly. |
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