This is a partial listing of DNA Lab web sites that you can use to find out many of the answers to your questions about DNA. Of course, if what you read there makes little or no sense to you, you can always come back here and Ms. Melvyn Gillette (Toot) or someone else can try to explain it differently to you.

http://www.africanancestry.com/

http://www.ancestrybydna.com/welcome/home/index.php

http://www.ethnoancestry.com/

http://www.familytreedna.com/

http://smgf.org/

...And of course, if you haven't found at these sites that which you seek, do a search at the "Google" search engine ( http://www.google.com/ ) for more information. Google has instructions to help you do more "effective" searches at their site (click on "About Google"). Good luck.