A chromosome component is a part of the genetic material that makes up a chromosome. The term can refer to SEX, which is represented by three letters, and is determined by the presence or absence of certain genes. Genes are four letter sequences of DNA that code for proteins and other molecules, and can be found in both males and females. Genomes are six letter sequences of DNA and RNA that contain all the genetic information of an organism, and can be found in both males and females. Centromeres are ten letter sequences of DNA that divide chromosomes into two parts during cell division. GONGS are five letter sequences of DNA that are involved in GENE regulation.