Ancient Greenland SNP
Many Single Nucleotide Polymorphisms (SNP) that are linked to a specific physical characteristic have been identified. Below is a list on some of the SNPs that were identified in the ancient Greenland man's DNA.
Rs6152
This SNP is located in the first exon of Androgen Receptor gene, located on the X-chromosome. It is a strong indicative marker for males who develop a baldness pattern. Males with the risk allele G have a high risk of developing male pattern baldness. However, the baldness probability varies depending on age and other factors.
Rs1426654
This SNP influences skin pigmentation. People having allele A are light-skinned and have European ancestry. This SNP is estimated to have spread through the European population approximately 6,000 - 12,000 years ago. Prior to that, European ancestors were estimated to have relatively brown skin. People with other alleles are not light-skinned.
Rs17822931
This is one of the most famous SNP identified. It is located in the ATP-binding cassette, sub-family C (CFTR/MRP) which is a member of ABCC11 gene. People having allele T/T commonly have dry ear wax and come from the Asian ancestry, whereas people having allele C/C commonly have wet ear wax and come from the European or African ancestry. This SNP is also associated with sweat production and lipid secretion.
Rs1129038
This SNP is located on chromosome 15, allele A/A is found in 97% of all Caucasians with blue eyes. People with allele C/C do not have blue eyes, instead they have brown eyes.
Rs3827760
This SNP is located in the EDAR (Ectodysplasin A Receptor) gene, on the position 1540. It is associated with hair thickness and tooth shape among Asians. People having C in the 1540 position instead of T are associated with having shovel shaped teeth. This is predominantly found in East Asian populations, and absent in populations of African and European origins. The 1540C allele has also been associated with Asian-specific hair thickness.
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