But geneticists have had only a handful of underpowered studies to address a complex, fraught, and often stigmatized area of human behavior. Now, the largest-ever study of the genetics of sexual orientation has revealed four genetic variants strongly associated with what the researchers call nonheterosexual behavior. Some geneticists are hailing the findings as a cautious but significant step in understanding the role of genes in sexuality. Others question the wisdom of asking the question in the first place. Andrea Ganna, a research fellow with the Broad Institute in Cambridge, Massachusetts, and Harvard Medical School in Boston, and colleagues examined data from hundreds of thousands of people who provided both DNA and behavioral information to two large genetic surveys, the UK Biobank study and the private genetics firm 23andMe. The researchers performed a genome-wide association study GWAS in which they looked for specific variations in DNA that were more common in people who reported at least one same-sex sexual experience. They identified four such variants on chromosomes seven, 11, 12, and 15, respectively. Two variants were specific to men who reported same-sex sexual experience. One, a cluster of DNA on chromosome 15, has previously been found to predict male-pattern baldness.
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She was the successor of Veleda at the end of the 1st century. She was politically active and acted as a diplomat and representative of her tribe in negotiations with Roman Emperor Domitian ruled 81— Masyus , king of the Semnones, and Ganna, a virgin who was priestess in Germany, having succeeded Veleda, came to Domitian and after being honoured by him returned home. Ganna accompanied Masyas to negotiate with Emperor Domitian, either during his temporary stay in Gaul ca. Like her predecessor Veleda, Ganna both described as virgins probably also had political influence in addition to her religious functions in divination, prophecy, and magical incantations Ger: Galster.