Synthesis of RNA in Isolated Cells from Xenopus laevis Embryos

  title={Synthesis of RNA in Isolated Cells from Xenopus laevis Embryos},
  author={Koichiro Shiokawa and O. A. Nada and Kiyotaka Yamana},
INVESTIGATIONS with amphibian embryos are of particular interest because of the recent finding that a sequential synthesis of RNA species takes place during early development: the first, synthesized during very early stages, is soluble RNA, followed by ribosomal RNA, the synthesis of which predominates later1,2. These sequential events may provide a parameter of cellular differentiation. The embryo has, however, a definite disadvantage: it needs few exogenous substances except for several… CONTINUE READING

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