BIOGEOGRAPHICAL RACIAL – ETHNIC DNA TESTING

 

 

The DNAPrint Test purports to be able to assess a person’s ancestral make up in terms of percentage of European, East Asian, Native American, and African.  They do this by scanning 19 of the 22 autosomes (non sex chromosomes) using 71 “deep ancestral markers” which are SNPs (single nucleotide polymorphisms) based on the observations that a change in a single base pair (say a Cytosine to a Guanine at a particular locus) tends to be found much more frequently in certain “racial” groups.  They then use this information with a complex algorithm (mathematical formula) to arrive at percentages of each group.  At the moment this test suffers from a very small and unrepresentative sample of Native Americans (and others) and the test has particular difficulty in distinguishing between Native American and East Asian.  Therefore for all practical purposes, a finding of East Asian in any of the individuals below is likely to have come from a Native American source since none have any known true East Asian (e.g., Korean, Chinese, etc.) ancestry.

 

DESCENDANTS of LT. JOHN YOUNG (1742 – 1812) and CATHARINE HILL (1747 – about 1793)

 

As is noted elsewhere, Catharine HILL was a Six Nations woman of the Mohawk Nation, Bear Clan, who was born in 1747.  There is considerable evidence that she was part – European, so it is unlikely that we could assign her to a biological 100% Native American category.  A present estimate would be that she was in total about 75% Native American.  The question of interest here is whether the above DNA test would show any evidence of the presence of Catharine HILL in the biological make up of her descendants to the present day.  The laws of genetics indicate that someone who is 7 generations removed from Catharine may show less than 1% Native American (NA) on any test.  It is possible by the laws of chance that some of her descendants inherited more than the expected percentage of NA (which as indicated could also be seen as East Asian or EA in the DNAPrint Test).  To test out this possibility, and to verify that the genealogy constructed on a paper trail was in fact true, the present author was able to obtain samples from two descendants of the eldest son of Catharine, Abraham YOUNG; and two from her second son John YOUNG Jr.  The results of their respective DNAPrint Tests are presented below in table form, along with the number of generations back to Catharine.

 

A)    ABRAHAM YOUNG (1766 – 1815)

 

Participant 1 - 7 generations removed.

 

 

Ancestry

Estimate

EUROPEAN

92%

EAST-ASIAN

8%

NATIVE-AMERICAN

0%

AFRICAN

0%

 

Participant 2 – 8 generations removed.

 

 

Ancestry

Estimate

EUROPEAN

97%

EAST-ASIAN

1%

NATIVE-AMERICAN

2%

AFRICAN

0%

 

 

B)    JOHN YOUNG Jr. (1772 – 1851)

 

Participant 1 – 7 generations removed.

 

 

Ancestry

Estimate

EUROPEAN

91%

EAST-ASIAN

5%

NATIVE-AMERICAN

4%

AFRICAN

0%

 

Participant 2 – 5 generations removed.

 

 

Ancestry

Estimate

EUROPEAN

91%

NATIVE-AMERICAN

8%

AFRICAN

1%

EAST ASIAN

0%

 

 

INTERPRETATION

 

The DNAPrint Test is at present the subject of a lot of heated debate – especially in reference to its ability to accurately represent minority ancestry.  Therefore the absolute numbers should be taken with a grain of salt.  All that can be said with some degree of certainty is that there appears to be a DNA signal from Catharine HILL that is still seen in her descendants to the present day.  It is important to note that the genealogies of each of the four participants above was checked closely and there does not appear to be any Native American source other than Catharine HILL.