TRUEBOSS72
contestada

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.

Respuesta :

18047
A and B are codominant, with both carbohydrates present. Think of this: why would a cell produce antibodies for carbohydrates found on it? The cell wouldn't. So, the fact that no antibodies for A or B are found in the blood of someone who is AB points to the fact that the cells must have both A and B carbohydrates.

Otras preguntas