It has been shown by microspectrophotometric studies of loach oocytes that after DMS effect RNA concnetration in the cytoplasm cells is 3.3 times higher in the experiment than in the control; in the nucleoli it is 2.3 times higher. The increase of RNA concentration in some strucutres of loach oocytes affected with DNS seems to be indicative of the strengthening intensity of synthetic processes in these cells.
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