How do genes differ from chromosomes?
Genes are the basic units of heredity and are located on chromosomes.
Genes are sections of DNA, whereas chromosomes are the structures that DNA folds into before cell division. Each human somatic cell contains 23 pairs of chromosomes. All of the genes that code for the creation, growth, and development of a human person are found in these chromosomes. In addition to DNA, these chromosomes contain histone proteins that help in the packaging of the DNA into chromosomes.
In eukaryotic cells, chromosomes are found in the nucleus but in prokaryotic cells they are free to move about.