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Blond hair is controlled by an allele that is recessive to most alleles responsible for darker hair, [1] but it is not a disappearing gene.. The "disappearing blonde gene" refers to a hoax that emerged in parts of the Western world in the early 2000s, claiming that a scientific study had estimated that blonds would become extinct within the next two centuries.
Mutations in the mouse Tyrp1 gene are associated with brown pelage and in the human TYRP1 gene with oculocutaneous albinism type 3 (OCA3). [9] An allele of TYRP1 common in Solomon Islanders results in blond hair. Although the phenotype is similar to Northern European blond hair, this allele is not found in Europeans.
Blond (sometimes blonde for women) hair ranges from pale white (platinum blond) to dark gold blond. Strawberry blond, a mixture of blond and red hair, is a much rarer type containing the most pheomelanin. [citation needed] Blond hair can have almost any proportion of pheomelanin and eumelanin, but has only small amounts of both. More ...
This DNA damage can cause changes in your genes called mutations that lead to skin cancer,” he told Healthline. ... have blonde or red hair, have a history of excessive sun exposure, including ...
Blond (MASC) or blonde (FEM), also referred to as fair hair, is a human hair color characterized by low levels of eumelanin, the dark pigment. The resultant visible hue depends on various factors, but always has some yellowish color.
Fashion and beauty regrets are inevitable as trends and styles change — but Heather Locklear still has a message for her younger self: get it together, girl! Earlier this year, while making an ...
It results in blonde hair and the eventual development of skin pigmentation during infancy, though at birth is difficult to distinguish from other types. [7] [11] About 1 in 40,000 people have some form of OCA1. [12] OCA2: 203200: OCA2: The most common type of albinism is caused by mutation of the P gene.
From her signature red hair circa Mean Girls to her short-lived stint as a platinum blonde, Lindsay Lohan has had quite the hair evolution. A natural born redhead, there’s no question that the ...