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<rdf:Description rdf:about="https://archives.ucl.ac.uk:443/CalmView/record/catalog/PENROSE/2/32/7" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Letter to J B S Haldane and Notes</dc:title>
  <dc:description>Contains a handwritten draft of a letter from Penrose to J B S Haldane, raising points on genetic equilibrium and the effect of monogamous relations in determining sex ratio at birth in Haldane's paper "Possible Causes of Genetical Polymorphism", and handwritten notes on "Autosomal Genes with Opposite Sex Effects".</dc:description>
  <dc:date>Mid-20th Century</dc:date>
</rdf:Description>