@nesian677: Blonde hair is rare outside Europe, but in Melanesia, especially in the Solomon Islands, the dark-skinned indigenous people naturally have blonde hair, a trait that has long been assumed to be the result of European influence. However, a new study by researchers from Stanford University School of Medicine reveals that this trait actually originates from a genetic variation that developed independently within the local population. The researchers identified a specific gene, TYRP1, responsible for the blonde hair. Notably, this gene variant is unique to the Solomon Islanders and does not appear in Europeans, indicating that it evolved separately in this region. The study was conducted by a team of scientists who traveled to remote areas of the Solomon Islands to collect more than 1,000 DNA samples. They gathered saliva samples and assessed physical traits like hair and skin color, despite facing challenges such as limited infrastructure and linguistic diversity. Through a genome-wide association study, they compared the DNA of individuals with blonde hair to those with dark hair. The analysis quickly identified the TYRP1 gene on chromosome 9 as the key factor responsible for the hair color difference. This variant accounts for 50% of the variation in hair color among the Solomon Islanders. These findings challenge the longstanding belief that blonde hair in the region was introduced by Europeans and underscore how certain human traits can evolve independently in different parts of the world. #solomonislands #thehapiisles #solomonislandstiktok🇸🇧 #melanesian #Melanesia #pacificislander #blonde #blondehair #fyp

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Saturday 04 January 2025 02:13:48 GMT