There are two numbered links in this post, number one contains information from CDC concerning your health and everything you should know about genetic testing, and number two from Wikipedia with a broader and deeper content, analyzing the objectives and implications of genetic testing in health sciences, legal field and Direct-to-consumer genetic testing.

1)- Genetic testing -CDC

http://www.cdc.gov/genomics/gtesting/genetic_testing.htm

2)- Genetic testing – Wikipedia

https://en.wikipedia.org/wiki/Genetic_testing