Blonde Hair Gene

Blonde Hair Gene. Their blonde hair all seems to share a common genetic difference. Citation needed Blond hair can have almost any proportion of pheomelanin and eumelanin but has only small amounts of bothMore pheomelanin creates a more golden or strawberry blond color. The common occurrence of blond hair among the dark-skinned indigenous people of the Solomon Islands is due to a homegrown genetic variant distinct from the gene that leads to blond hair.

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Naturally blond hair in Solomon Islanders rooted in native gene study finds.

It turns out that according to scientists from the Institute of Molecular Medicine in Oxford they are Neanderthals. Blond sometimes blonde for women hair ranges from pale white platinum blond to dark gold blond. Blond hair is most often associated with Northern Europe and is not as common in other parts of the world.

Take hair color for example. The genome-wide association studies GWAS have found that the mutant gene that is responsible for blondness in the Northern European population is KIT ligand KITLG which has the ability to fight skin cancer. For one to have red hair and blue eyes the parents have to give them the MC1R recessive gene for red hair and the one for blue eyes.

Instead in people of European ancestry it causes blond hair through a 20 percent turn of the thermostat dial that regulates a signaling gene in the hair follicles of the skin. Someone who has black or brown hair is making large amounts of a dark pigment called eumelanin. This genetic difference R93C in the TYRP1 gene is also not found in Europeans.

It is estimated that around two percent of the worlds population are fair-haired. Researchers have identified a gene that is responsible for blond hair in 5-10 percent of the indigenous population of the Solomon Islands in the South Pacific. A brown allele would have dominated resulting in brown hair.

Here we know that both parents genotypes contain only blonde traits because that is the only way they could have blonde hair. Brunettes Can Give Birth To Blondes. The production and distribution of this pigment across a hair strand requires multiple.

Strawberry blond a mixture of blond and red hair is a much rarer type containing the most pheomelanin. There is no single brown red or blonde hair geneits actually a whole network of genes that interact with one another to control the production of colorful pigments. That SNP caught the eye of David Kingsley an evolutionary geneticist at Stanford University in California.

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