HELP ASAP The arrangement of individual polypeptides in a protein containing more than one polypeptide results in a
level protein structure.
a. primary
b. quaternary
c. pentagonal
d. secondary
e. tertiary

Each polypeptide chain such protein is called a subunit. Quatenary structure refers to the spatial arrangement of subunits and the nature of their interactions. The simplest sort of quantum Terry scripture structure is a dimer, consisting of two identical subunits.

So that you don't get baby's but also prevents stis such as hiv