Definition: Gene expression is the process by which a cell turns the information in a gene into a functional product, such as an RNA molecule or a protein. In simple terms: gene expression is how a ...

Essentially all cells in an organism's body have the same genetic blueprint, or genome, but the set of genes that are actively expressed at any given time in a cell determines what type of cell it ...

DNA methylation is a key epigenome component that helps dictate how genes are expressed, contributing to normal cell and tissue differentiation during development, as well as the process of biological ...