Question

in the human abo blood grouping, there are four basic blood types, type a, type b, type ab, and type o. the blood proteins a and b are
o sex - linked genes
o codominant
o environmentally influenced
o incomplete dominant

Explanation:

In the context of human ABO blood grouping, the blood proteins A and B are an example of codominance. Codominance is a type of inheritance where both alleles in a heterozygous individual are fully expressed. In the case of blood type AB, both the A and B alleles are expressed, resulting in the presence of both A and B antigens on the red blood cells. This is different from incomplete dominance (where a blend of traits occurs), sex - linked genes (which are located on sex chromosomes), and environmentally influenced traits (where the environment plays a major role in trait expression).

Answer:

codominant