The ratio of 2nd to 4th digit length: a predictor of sperm numbers and concentrations of testosterone, luteinizing hormone and oestrogen.

@article{Manning1998TheRO,
  title={The ratio of 2nd to 4th digit length: a predictor of sperm numbers and concentrations of testosterone, luteinizing hormone and oestrogen.},
  author={J. Manning and D. Scutt and J. Wilson and D. I. Lewis-Jones},
  journal={Human reproduction},
  year={1998},
  volume={13 11},
  pages={
          3000-4
        }
}
  • J. Manning, D. Scutt, +1 author D. I. Lewis-Jones
  • Published 1998
  • Biology, Medicine
  • Human reproduction
  • The differentiation of the urinogenital system and the appendicular skeleton in vertebrates is under the control of Hox genes. [...] Key Result We showed that (i) 2D:4D in right and left hands has a sexually dimorphic pattern; in males mean 2D:4D = 0.98, i.e. the 4th digit tended to be longer than the 2nd and in females mean 2D:4D = 1.00, i.e. the 2nd and 4th digits tended to be of equal length.Expand Abstract

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