Many Native Americans have become used to the idea of "blood quantum". The blood quantum laws have caused problems in Native American families whose members were inaccurately recorded as having differing full or partial descent from particular tribes. In some cases, blood quantum has strained families and relationships. At certain times, some state governments classified persons with
African American and Native American admixture solely as African American, largely because of racial discrimination related to slavery history and the concept of the
one drop rule. This was prevalent in the
South after
Reconstruction, when white-dominated legislatures imposed legal
segregation, which classified the entire population only as white or colored (Native Americans, some of whom were of mixed race, were included in the latter designation). It related to the racial caste system of slavery before the
American Civil War. Some critics argue that blood quantum laws helped create racism among tribal members. The historian Tony Seybert contends that was why some members of the so-called
Five Civilized tribes were slaveholders. The majority of slave owners were of mixed-European ancestry. Some thought they were of higher status than full-blood Indians and people of African ancestry. Other historians contend that the Cherokee and other tribes held slaves because it was in their economic interest and part of the general southeastern culture. Cherokee and other tribes had also traditionally taken captives in warfare to use as slaves, though their institution differed from what developed in the southern colonies.
Population decline due to exogamy Nationwide, 54-61% of all Native Americans
marry non-Natives, which is a much higher rate than for any other racial group. It is projected that the
Minnesota Chippewa Tribe will experience a gradual population decrease in the coming decades, unless it lowers its current membership requirement of at least 25% Native ancestry, as a consequence of tribal members having children with non-Native Americans for several generations.
DNA ancestry testing No
federally recognized tribe enrolls citizens solely based on DNA testing, as it generally cannot distinguish among tribes. Some tribes may require DNA testing only to document that a child is related to particular parents. Many researchers have published articles that caution that genetic ancestry DNA testing has limitations and should not be depended on by individuals to answer all their questions about heritage. Many African Americans assume they have some Native American ancestry. But, in the
PBS series led by historian
Henry Louis Gates Jr., called
African American Lives, geneticists said DNA evidence shows that Native American ancestry is far less common than previously assumed; of the group tested in the series, only two of the people showed likely Native ancestry. Only 5 percent of African Americans have at least one-eighth Native American ancestry (equivalent to one great-grandparent). On the other hand, nearly 78 percent of African Americans have at least one-eighth European ancestry (the equivalent to one great-grandparent), and nearly 20 percent have at least one-quarter European ancestry (the equivalent to one grandparent.) In response, one critic asserted the percentage must be higher because there are so many family stories (the reasons for which Gates and, notably,
Chris Rock explored in the documentary), but felt that many people did not always talk about it because to acknowledge it would be to deny their African heritage. Some critics thought the PBS series
African American Lives did not sufficiently explain such limitations of DNA testing for assessment of heritage. In terms of persons searching for ethnic ancestry, they need to understand that
Y-chromosome and
mtDNA (mitochondrial DNA) testing looks only at "direct" line male and female ancestors, and thus can fail to pick up many other ancestors' heritage. Newer DNA tests can survey all the DNA that can be inherited from either parent of an individual, but at a cost of precision. DNA tests that survey the full DNA strand focus on "
single nucleotide polymorphisms" or SNPs, but SNPs might be found in Africans, Asians, and people from every other part of the world. Full survey DNA testing cannot accurately determine an individual's full ancestry. Though DNA testing for ancestry is limited more recent genetic testing research of 2015, have found that varied ancestries show different tendencies by region and sex of ancestors. These studies found that on average, African Americans have 73.2–82.1%
West African, 16.7%–29%
European, and 0.8–2%
Native American genetic ancestry, with large variation between individuals. A notable debate in 2019 over the validity of DNA testing for Native American ancestry arose over the
controversies surrounding Elizabeth Warren's ancestry.
Tribal rolls Basing citizenship off specific enrollment rolls, like the
Dawes Rolls (that were taken after more than 80 years after Removal, after the
American Civil War, and after tribal government restructuring), is what scholar Fay A. Yarbrough calls "dramatically different from older conceptions" of tribal identity based on clan relationships, "in which individuals could be fully," for example, "Cherokee without possessing any Cherokee ancestry." And that by the tribe later "developing a quantifiable definition of Cherokee identity based on ancestry," this "would dramatically affect the process of enrollment late in the nineteenth century and the modern procedure of obtaining citizenship in the Cherokee Nation, both of which require tracing an individuals' lineage to a 'Cherokee by blood.'" Thus, the Dawes Roll still upholds "by blood" language and theory of its time even though the tribe does not require blood quantum. Author Robert J. Conley has stated that if a tribe like the Cherokee Nation are "really serious about exercising its sovereignty and determining its membership," then it should not use the roll that "was put together by the U.S. government and then closed by the U.S. government," meaning that a tribal nation is still subject to the settler definitions of its citizens when other outside nations do not require rolls, ethnicity, race, or blood quantum for citizenship, but rather birth location and descendance. == U.S. Census ==