On this page you will find various sites to assist you in looking up information on genes, chromosomes, genetic and chromosomal conditions, genetic tests, and tutorials on genetics. Click on a link below or scroll down to find out more about each site.

MedlinePlus

National Human Genome Research Institute

Genetic Testing Registry

Definitions

MedlinePlus Genetics

MedlinePlus includes a Genetics section with the basics of genetics and ways to search for health conditions, genes, and chromosome problems. It is produced by the National Library of Medicine. 

• Genetic Conditions - Find information on more than 1,300 health conditions with a genetic basis.
• Genes - Look up specific genes to find out about what conditions they might relate to, where they are located, how they work, how they are inherited, and more.
• Chromosomes - Look up information on chromosomes, chromosomal abnormalities, and mitochondrial DNA.
• Help Me Understand Genetics - Information on genes, cells, and how they all work together. Look up words to find out what they mean. A simple way to explain a complicated subject.

The National Human Genome Research Institute (NHGRI) is a part of the National Institute of Health (NIH). It contains research and information on obtaining research funding for genome research. It also contains:

• Introduction to Genomics
• A glossary of genetic terms (in English and in Español)
• Educational resources and fact sheets 

The Genetic Testing Registry contains information on genetic tests, including methodology, purpose, usefulness, and validity. You can search for a specific test or find tests for specific health conditions or drug reactions. 

• Find genomic tests using the Tests, Conditions/Phenotypes, or Genes tabs.
• Find a laboratory using the Lab tab.
• Find in-depth information from experts on genetic topics, using the GeneReviews tab.

To find out definitions such as what a gene is, what a chromosome is, and more, you can check out these glossaries and tutorials. 

• Medline Plus Genetics
• National Human Genome Research Institute
• CDC: Genomics & Precision Health
• University of Utah: Genetics Disorders

By becoming more knowledgeable about your condition, you can be better prepared to talk with your health care provider and take a more active role in your health care. The University of Arkansas for Medical Sciences provides this listing of consumer health web sites for informational use only, and does not establish a professional relationship between the users and any health care provider. These materials are not intended as a substitute for the care of a qualified health care provider.