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. A and B alleles are co-dominant. Therefore, both A and B carbohydrates are present on the cell.

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

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

Question

Taniya Mitchell

Biology

23 November, 00:28

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. A and B alleles are co-dominant. Therefore, both A and B carbohydrates are present on the cell.

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

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

+5

Answers (1)

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Turner Olson · Answer 1

I think the correct answer from the choices listed above is option A. From the situation stated above we can say that A and B alleles are co-dominant. Therefore, both A and B carbohydrates are present on the cell. Hope this answers the question. Have a nice day.