Learn more about what foods to eat and what to avoid if you have diverticulitis.
Gene. Definition. noun, plural: genes. (cell and molecular biology). The fundamental, physical, and functional unit of heredity. Supplement. It is because a gene is a segment of DNA (on a specific site on a chromosome) that is responsible for the physical and inheritable characteristics or phenotype of an organism.It also specifies the structure of a protein, and an RNA molecule.A gene is formerly called a factor.t is because a gene is a segment of DNA (on a specific site on a chromosome) that is responsible for the physical and inheritable characteristics or phenotype of an organism. It also specifies the structure of a protein, and an RNA molecule. A gene is formerly called a factor.
A gene is a section of DNA that codes for a specific protein. An allele is the different forms of that gene. The commonly used examples are things such as eye colour (althoughâ¦ this is an over simplification as the true nature of the genes governing eye colour are a little more complex): You have a GENE for eye colour. That GENE comes in (normally) two forms.