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Article

Cell Cycle regulations: The timing of pronuclear formation, DNA synthesis and cleavage in the human 1-cell embryo

1 Jan 1996

Abstract excerpt

The timing of pronuclear formation and breakdown, DNA synthesis and cleavage during the first cell cycle of human embryogenesis are described. Pronuclei formed between 3 and 10 h post-insemination (hpi; median 8 hpi). S-phase commenced between 8 and 14 hpi, and was completed between 10 and 18 hpi. M-phase was observed between 22 and 31 hpi (median duration 3 h), and cleavage to the 2-cell stage took place between...

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Identifiers

PMID: 9238696
DOI: 10.1093/molehr/2.5.299

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