In biology, a gene is a basic unit of heredity and a sequence of nucleotides in DNA or RNA that encodes the synthesis of a gene product, either RNA or protein. During gene expression, the DNA is first copied into RNA.
Genes are segments of DNA found on a chromosome that determine the inheritance of a particular trait. They are responsible for the inherited characteristics that distinguish one individual from another. Chromosomes. Chromosomes are structures found in the nucleus of a cell that contains the genetic information (DNA).
