Which of the following is not part of the structure of an antibody?

a.) a hypervariable region
b.) an antigen-binding site
c.) light chains
d.) heavy chains
e.) a major histocompatibility complex

The frequency of alleles in a population that is in hardy weinberg equilibrium? a . changes in each successive generation b. is less important than the frequency genotypes c. shows evidence of the process of natural selection d. remains the same over several generations