Katsuma Dan

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In the eggs of four species of echinoderms, Mespilia globulus, Pseudocentrotus depressus, Hemicentrotus pulcherrimus and Clypeaster japonicus, changes in the distribution of protein-bound SH groups from fertilization to the 2 cell stage have been studied cytochemically by use of a mercaptide-forming azo dye. In the eggs of these species, the color intensity(More)
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