Question

an individual with a antigens on their rbcs but no b antigens has which abo blood type?
multiple choice
either type a or type b, there is not enough information to distinguish between them
type b
type ab
type a
type o

Explanation:

Blood type is determined by the presence or absence of antigens on red blood cells (RBCs). Type A blood has A antigens and no B antigens. Type B has B antigens and no A antigens. Type AB has both A and B antigens. Type O has neither A nor B antigens. Since the individual has A antigens and no B antigens, it cannot be Type B (which has B antigens), Type AB (which has B antigens), Type O (which has no A antigens). And there is enough information as the presence of A antigens and absence of B antigens clearly points to Type A.

Answer:

Type A