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A study on the populations of the Chalcolithic Levant (6,000-7,000 years ago), found that an allele rs1426654 in the SLC24A5 gene which is one of the most important determinants of light pigmentation in West Eurasians, was fixed for the derived variants in all Levant Chalcolithic samples, suggesting that the light skinned phenotype may have ...
Griscelli syndrome is a rare autosomal recessive [1] disorder characterized by albinism (hypopigmentation) with immunodeficiency, that usually causes death by early childhood. Researchers have developed three different classifications of the form of disorder, characterised by different signs and symptoms.
The theory is partially supported by a study into the SLC24A5 gene which found that the allele associated with light skin in Europe "determined […] that 18,000 years had passed since the light-skin allele was fixed in Europeans" but may have originated as recently as 12,000–6,000 years ago "given the imprecision of method" , [39] which is ...
This became known as type 2B of the condition (with the gene designated WS2B), however it has not been documented since, and the gene responsible remains unknown. [ 21 ] [ 22 ] Type 2C was established in 2001 when a study of an Italian family with Waardenburg syndrome type 2 features found that they were due to an unknown gene on chromosome 8 ...
Mutations in the CHS1 gene (also called LYST) located on the chromosome 1q42-q43 have been found to be connected with Chédiak–Higashi syndrome. This gene provides instructions for making a protein known as the lysosomal trafficking regulator.
Xeroderma pigmentosum (XP) is a genetic disorder in which there is a decreased ability to repair DNA damage such as that caused by ultraviolet (UV) light. [1] Symptoms may include a severe sunburn after only a few minutes in the sun, freckling in sun-exposed areas, dry skin and changes in skin pigmentation. [1]
Timeline of postmortem changes (stages of death), with pallor mortis near left side. Pallor mortis (from Latin pallor 'paleness' and mortis 'of death') is the first stage of death that occurs in those with light/white skin. [1] An opto-electronical colour measurement device is used to measure pallor mortis on bodies. [2]
Light skin (2 C, 8 P) S. Skin whitening (15 P) Sun tanning (3 C, 23 P) W. White (human racial classification) (7 C, 7 P) Pages in category "Human skin color"