Hereditary tissues off same-sex sexual decisions
Among sets of men and women in the uk Biobank related at the complete cousin otherwise nearer [since acquiesced by genomic resemblance (14); n pairs = 106,979], so much more closely relevant citizens were very likely to end up being concordant inside regards to same-sex intimate conclusion. By the acting the brand new interaction off relatedness certainly one of some body as well as the similarity of their sexual behavior, i projected greater-sense heritability-the new portion of type inside the a trait owing to hereditary adaptation-in the 32.4% [95% rely on times (CIs), ten.6 to help you 54.3] (dining table S4). It estimate was in line with past quotes regarding reduced twin degree (7).
To increase power and generalizability of our results, we also performed a GWAS in the cohort from 23andMe using an equivalent variable (individuals who reported having had sex with “Other sex only” versus the other options on a seven-point scale regarding participants’ sexual partners) (n = 68,527 individuals, of which 12,933 reported same-sex sexual behavior) (table S3) (14).
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