Click on the link below for an interesting discussion of Anomalous DNA found in Native Americans.
"In the past, whenever a geneticist or anthropologist conducting a study of Native Americans has encountered an anomalous haplogroup, that is, a lineage that does not belong to one of the five generally accepted American Indian mitochondrial DNA haplogroups A, B, C, D and X, it has been rejected as an example of admixture and not included in the survey results.
Lineage A, B, C, D and X are American Indian.
Therefore, all American Indians are lineage A, B, C, D and X.The fallacy in such reasoning is apparent. It could be restated as: "All men are two-legged creatures; therefore since the skeleton we dug up has two legs, it is human." It might be a kangaroo."