Can I prove Native American heritage with dna test only?

Question:

Can I prove Native American heritage with dna test only?

My family has recently found out that my grandmother was 1/2 native american. However, I have no way to prove this as it was due to an unsubstantiated relationship of her mother's and was kept secret until my grandmother's death. Is there any way to get a CIB card with dna only, without knowing exact names and history of ancestors?

Best Answer - Chosen by Asker: As others have said, no, but even if DNA tests were "proof" for enrollment, I don't think it would do you any good - from your question, it sounds like your Native ancestor was your Grandmother's father. DNA tests two lines - mother's mother line (Y-chromosome) and father's father's (X-chromosome).

You would have to find and test a direct male line descendant of your grandmother's father to have the possible Native DNA. It wouldn't show up in your testable DNA.