a group of related genes is called a
A gene family is a group of genes that share important characteristics. In many cases, genes in a family share a similar sequence of DNA building blocks (nucleotides).These genes provide instructions for making products (such as proteins) that have a similar structure or function.ach grouping is given a name and symbol, and contains a table of the genes in that family. The Gene Ontology database lists the protein products of genes by their location within the cell (cellular component), biological process, and molecular function.