Abstract
As described in previous publications1,2, we have found, by using modified Cartesian divers, that the frog's egg during cleavage respires rhythmically. The cleavage furrow invariably appears during a period of increasing respiration, the increase, however, being only slight, namely, 7–11 per cent. Single frog's eggs were used for these experiments, and the first three cleavages only were studied.
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References
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ZEUTHEN, E. Respiration and Cell-Division in Eggs of the Sea Urchin, Psammechinus miliaris. Nature 160, 577–578 (1947). https://doi.org/10.1038/160577b0
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DOI: https://doi.org/10.1038/160577b0
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