MHC is also known as the major histocompatibility complex, which is a set of genes that help the immune system. All vertebrates have major histocompatibility complex as well. According to the hypothesis of inbreeding avoidance, individuals sharing the same MHC are most likely related. MHC-disassortative mating is to avoid mating with relatives due to the increase of homozygous. Producing homozygous offspring can lead to higher chances of mutations and higher death rates due to the lack of ability to advance. When females are choosing a mate they tend to observe trait of the male to promote better offspring. This hypothesis links to page168, which states “ The diversity of the MHC helps mammals here because different MHC proteins fasten to and
