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1. Sex ratio in man: an analysis of the relationship with ABO blood groups and placental alkaline phosphatase phenotype.

Author

Gloria-Bottini F, Polzonetti A, Lucarini N, Palmarino R, Orzalesi M, Carapella E, Maggioni G, and Bottini E

Subjects
Connecticut, Female, Humans, Infant, Newborn, Male, Pregnancy, Rome, ABO Blood-Group System, Alkaline Phosphatase genetics, Placenta enzymology, Sex Ratio
Abstract

Secondary sex ratio (SR) in man is influenced by various genetic and environmental factors. It has been observed that SR in subjects of blood group B compatible with their mothers is higher than in other subjects. The analysis of 676 newborns of the Rome population and 1,684 newborns of the New Haven (Connecticut) population have confirmed a higher SR in B group subjects compatible with their mothers. The data also indicate that placental alkaline phosphatase is another genetic factor influencing SR in man and that there is a strong interaction among ABO phenotype, fetomaternal ABO compatible status and PAP phenotype concerning their effects on SR.

Published
1979
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