The jelly secreted by the oviduct of Rana pipiens has been analyzed histochemically and biochemically. Histochemical techniques show that the jelly contains neutral carbohydrates and a protein moiety. Colorimetric estimation reveals that the jelly contains protein and also appreciable quantities of hexose and hexosamine. Sialic acid is present. Chromatographic methods were employed to identify the simple sugars, galactose, fucose, mannose, xylose and glucose, and the hexosamines, glucosamine and galactosamine.
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Peter A. Lee (1967) studied this question.
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