About AE   About NHM   Contact Us   Terms of Use   Copyright Info   Privacy Policy   Advertising Policies   Site Map
Custom Search of AE Site
spacer spacer

Understanding Gene Testing

How are genes linked to disease?

Many, if not most, diseases have their roots in our genes. Genes - through the proteins they encode - determine how efficiently we process foods, how effectively we detoxify poisons, and how vigorously we respond to infections. More than 4,000 diseases are thought to stem from mutated genes inherited from one's mother and/or father. Common disorders such as heart disease and most cancers arise from a complex interplay among multiple genes and between genes and factors in the environment.
gene with mutation
When a gene contains a mutation, the protein encoded by that gene will be abnormal. Some protein changes are insignificant, others are disabling.

previous page TOC page next page

Previous page: How do genes work?
TOC page: Table of Contents
Next page: How does a faulty gene trigger disease?

Know of a great site to add to this list?

Custom Search on the AE Site