Question

32 the presence of a group of antigens that determine blood type occurs as a result of a/an multiple choice sex - linked trait semilethal allele multiple allele system incomplete dominance

Explanation:

Blood - type determination is based on a multiple - allele system. There are three main alleles (I^A, I^B, and i) involved in determining ABO blood types. A sex - linked trait is related to genes on sex chromosomes and not relevant here. A semilethal allele causes death in some cases and is not related to basic blood - type determination. Incomplete dominance is when neither allele is completely dominant over the other, which is not how blood types are determined in terms of the presence of antigens for ABO system.

Answer:

C. multiple allele system