I am researching the phenomena of "Black Indians"--African American people who also have Native American ancestry. One of the dilemmas that has faced many Black people in recent years is whether to take and how to interpret the results of genetic tests, used to demonstrate ethnic and racial heritage. How complete are these tests? Is there a significant margin of error, due to incomplete profiling?
Tina Turner believed that she had significant Navajo and Cherokee ancestry, but genetic testing revealed that she was only 1% Native
. Is that 1% likely to be a truly accurate number?
I have heard that the tests often only look at part of one's ancestry. For example, only the paternal or maternal line. Could Turner thus actually have a lot of Native ancestry, perhaps 10% or more, despite being told this small number, because only some ancestors are revealed by the testing?
Any insights into rates of error, or advice for interpreting such tests, would be greatly appreciated.