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Article

Digit Ratio (2D:4D) in Twins: Heritability Estimates and Evidence for a Masculinized Trait Expression in Women from opposite-Sex Pairs

1 Feb 2007

Abstract excerpt

The second-to-fourth digit ratio (2D:4D) is sexually dimorphic in humans, such that men on average have a lower 2D:4D than women. This somatic trait has been proposed as a biomarker for the organizational (permanent) effects of prenatal testosterone on the brain and behavior. Over the past few years, an accumulating research program has shown 2D:4D to be related to a multitude of sex-dependent, hormonally...

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Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

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PMID: 17451014
DOI: 10.2466/pr0.100.1.115-126

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 5 Sept 2026.

Related research

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Research trail→

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Digit Ratio (2D:4D) in Twins: Heritability Estimates and Evidence for a Masculinized Trait Expression in Women from opposite-Sex PairsPMID 17451014Read ↗

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Relationship of digit ratio with sexual steroid hormone receptor related genes - single nucleotide polymorphisms in a sample from Northern China.Semantic proximity Read ↗

2nd to 4th digit ratio (2D:4D) and number of sex partners: Evidence for effects of prenatal testosterone in menSemantic proximity Read ↗

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