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.

Answer 1

What do you think it should be?

Answer 2

b

Answer 3

@Abhisar

Answer 4

Nopes, ABO blood grouping is an example of multiple allele and co-dominance. Due to this antigens for both A and B are present in cells of a person with blood group AB.

Answer 5

so its A ?

Answer 6

\(\huge \checkmark\)

Answer 7

thanks!!