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No genetic contribution to variation in human offspring sex ratio: a total population study of 4.7 million births

19 Feb 2020

Abstract excerpt

The ratio of males to females among an individual's offspring at birth (offspring sex ratio) has long been of great interest to evolutionary biologists. The human offspring sex ratio is around 1 : 1 and is understood primarily in terms of Fisher's principle (R. A. Fisher,The genetical theory of natural selection, 1930), which is based on the insight that in a population with an unequal sex ratio, each individual...

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PMID: 32070249
DOI: 10.1098/rspb.2019.2849

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