In English | En español
Questions About Cancer? 1-800-4-CANCER

Understanding Cancer Series

< Back to Main
  • Posted: 01/28/2005
  • Reviewed: 09/01/2006

Page Options

  • Print This Page
  • Print This Document
  • View Entire Document
  • Email This Document
  • View/Print PDF
  • View/Print PowerPoint

Slide 5


Gene Subunits

< Previous SectionNext Section >

A gene is a working subunit of a DNA molecule.

A gene is any given segment along the DNA carrying a particular set of instructions that allows a cell to produce a specific product--typically, a protein such as an enzyme. There are about 25,000 genes, and every gene is made up of thousands, even hundreds of thousands, of chemical bases.

Gene Subunits