2006-12-21 20:29:42 · 7 answers · asked by Charles C 1 in Science & Mathematics ➔ Biology
There is an amazing array of blood tests that can be performed today. The ABO blood typing, with or without Rh analysis, is not a good predictor of ethnicity due to the migrations humans have undertaken during their short residence on the planet. There are some very rough percentages for some ethnic groups, ie. 25% of 'Asians' are blood type B. Unfortunately, 'Asian' is a broad term since 'Asia' is such a broad classification (Indian, Chinese, Mongolian....).
More detailed analysis of specific genetic markers on blood cells can be helpful in only a handful of cases to determine ethnicity, ie. American Indians and Alaskan Natives have a high prevalence of blood type 'RzRz'.
Moving up to DNA analysis, conducted using the DNA found in the white blood cell portion of blood, there are now several methods of testing. mtDNA (mitochondrial DNA, which is inherited through the mother, so both men and women can be tested) and Y chromosome DNA testing (inherited through the male only, sorry gals) are two analyses that give excellent data about geographic and ethnographic roots.
2006-12-21 21:43:21 · answer #1 · answered by teachbio 5 · 2⤊ 0⤋
I don't think there is a complete genome map of ethnicity traits. I know some ethnicity markers are known, for instance some variation of some genes that is unique to a certain ethnicity. So if you have that marker, you are certainly from that decendence. But it is nothing comprehensive, so there is no way at this point to completly determine one's ethnicity through DNA testing.
2006-12-22 02:44:41 · answer #2 · answered by dahfna 3 · 0⤊ 0⤋
There are indicator, but nothing conclusive. There are two many interracial"relations" to make a positive ID. Also not everyone has a marker that is known to indicate a racial preference. The chances are slim that one would find evidence of race in your blood. Not all test would be DNA. Sickle cell will indicate He's PROBABLY black. So does minor blood groups.
2006-12-21 20:42:22 · answer #3 · answered by Anonymous · 0⤊ 0⤋
through a simple blood test...no. through genetic testing...maybe. i haven't come upon anything saying that we have genetic maps that tell us what ethnicity a person is by simply sequencing their DNA. ethinicity is also something hard to test for with all the "interracial" mating there has been over the last hundred years or so which would make it hard to find someone who is 100% anything.
2006-12-21 21:05:37 · answer #4 · answered by fsupremed 1 · 0⤊ 1⤋
Ethnic origins may be determined through allele pairs and genetic trait expression. This is commonly performed via blood testing and buccal swabs.
2006-12-21 23:21:14 · answer #5 · answered by Anonymous · 0⤊ 1⤋
It can be through DNA testing, so yes.
2006-12-21 20:33:07 · answer #6 · answered by Star 5 · 0⤊ 0⤋
no because blood groups are too broad
2006-12-22 03:18:36 · answer #7 · answered by Anonymous · 0⤊ 0⤋