Abstract

SummaryAlthough concentrations of nucleic acids have been determined by various workers in some animal embryonic organs, reports on similar studies in human material are scarce. This communication describes some biochemical investigations in regard to nucleic acid and protein concentrations in various organs and membranes of human fetuses obtained by therapeutic abortion. The pattern of nucleic acid and protein concentrations at various stages of the first half of gestation appears to be characteristic of each organ. The recorded results are related to known embryological data such as the differential rates of development in individual organs, and the relevant biochemical aspects of human embryonic and fetal growth are discussed.

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