Ancestry/Genealogy

It is only $99, at familytreedna.com. Look for their Family Finder test. It also finds distant cousins, for parents going back 5 generations. It doesn't focus on maternal or paternal lines in particular, it studies "autosomal" dna. They have other tests for maternal and paternal lines. Read about it at their web site.

To get actual tribal membership, the rules vary by tribe; generally you will need more documentation than just a dna test.

My grandmother had been thought to have Indian ancestry, and she certainly looked like it. Now it looks like her ancestors may have come over with the Spanish who first explored central North America (and thereby wiped out many Native Americans with their diseases). Some of them could have been Sephardic Jews fleeing the Inquisition.