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Article

Contraception ends the genetic maintenance of human same-sex sexual behavior.

Proceedings of the National Academy of Sciences of the United States of America - 23 May 2023

Song Siliang, Zhang Jianzhi

Abstract excerpt

Because human same-sex sexual behavior (SSB) is heritable and leads to fewer offspring, it is puzzling why SSB-associated alleles have not been selectively purged. Current evidence supports the antagonistic pleiotropy hypothesis that SSB-associated alleles benefit individuals exclusively performing opposite-sex sexual behavior by increasing their number of sexual partners and consequently their number of...

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Identifiers

PMID: 37186855
DOI: 10.1073/pnas.2303418120
PMCID: PMC10214190

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-07.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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