A person with blood group A produces antibodies against B. A person with blood group B produces antibodies against A. A person with blood group AB produces no antibodies. How can you explain this?
A and B alleles are co-dominant. Therefore, both A and B carbohydrates are present on the cell.

A is incompletely dominant over B. Both A and B carbohydrates are present on the cell.

A and B alleles are co-dominant. Half the cells have only A, and other half have only B.

Question

A person with blood group A produces antibodies against B. A person with blood group B produces antibodies against A. A person with blood group AB produces no antibodies. How can you explain this?
A and B alleles are co-dominant. Therefore, both A and B carbohydrates are present on the cell.

A is incompletely dominant over B. Both A and B carbohydrates are present on the cell.

A and B alleles are co-dominant. Half the cells have only A, and other half have only B.

abhisar · Answer

A and B alleles are co-dominant and thus both carbohydrates are present on the cell so no antibodies are formed.

abhisar · Answer

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