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adam and eve karen miller

West Africans Have Cancer-Fighting Genes Inherited From an Unknown Human Ancestor

Evidence of a previously unknown species of human ancestor has been discovered in the DNA of West Africans.The discovery was made by experts who examined the human genome for out-of-place strings of genetic information. This revealed the inheritance of markers from an unidentified human-like species, some of which may be beneficial to their descendants, including one that inhibits tumor development.Researchers believe Homo heidelbergensis, an ancient species of hominin, is the most likely candidate for the ‘ghost’ species. Arun Durvasula and Sriram Sankararaman of the University of California, Los Angeles, made the discovery. They developed a statistical method for detecting abnormal genetic code without the need for the genome of the species from which it was inherited. This eliminates the need for DNA extracted from extinct African hominins as a comparison point. Unlike samples of human-like Neanderthals and Densiovans discovered in Europe and Asia, the hotter and wetter climate on the African continent tends to destroy any preserved DNA.The statistical technique was used on the DNA of 50 modern Yoruba people whose genetic information was sequenced as part of the 1,000 Genomes Project.This established that approximately 8% of their DNA comes from a previously unknown ‘ghost’ species. While Homo sapiens may be the only hominin species alive today, the planet was home to a variety of human and protohuman species tens of thousands of years ago. …

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