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Article

The epigenetic environment: secondary sex ratio depends on differential survival in embryogenesis

24 Dec 2004

Abstract excerpt

Live human births are usually more than half male, in spite of excess losses of males throughout fetal development. These observations together demand an excess of males near the beginning of pregnancy greater than that seen at birth. Reductions of the usual excess of males among human live births have widely been considered to represent consequences of untoward circumstances surrounding conception. Repeated...

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Share to Birth, Development, and Health
Share to Demographic Trends and Gender Preferences
Share to Epigenetics and DNA Methylation

Methodology Data sources Editorial policy Privacy About Contact Helena Bioinformatics

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PMID: 15618256
DOI: 10.1093/humrep/deh662

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