Where do i go to have my DNA checked? I want to know my background my ancestors

Question:

Where do i go to have my DNA checked? I want to know my background my ancestors are all dead.?

Oprah did hers proof: Go to wikipedia and look for African American Lives:

For the 2006 PBS program, African American Lives, Winfrey had her DNA tested. The genetic test determined that her maternal line originated among the Kpelle ethnic group, in the area that today is Liberia. Her genetic make up was determined to be 89% Sub-Saharan Africa. She is part Native American with (about 8% according to the test) and East Asian (about 3% according to the test).

Best Answer - Chosen by Asker: http://www.genetree.com/
National Geographic also has a project going, https://www5.nationalgeographic.com/geno...
Go to Ancestry.com or another geneology site and check their forums. Some companies also have name projects where your DNA will be compared with other people who share your surname.