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Updated: Jul 15, 2026

Primordial Germ Cell Cryopreservation and Revival of Drosophila Strains
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ダウシャントウの胚は,ダイアパウスの卵胞の中に保存されています.

Leiming Yin1, Maoyan Zhu, Andrew H Knoll

  • 1State Key Laboratory of Paleobiology and Stratigraphy, Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences, Nanjing 210008, China. leimingyin@yahoo.com.cn

Nature
|April 6, 2007
PubMed
まとめ

ドウシャントゥー形成の化微生物化石は,細菌ではなく,初期の動物胚である可能性が高い. これらの初期の分裂段階の胚は,有機小胞の中で保存されていて,ネオプロテロゾーイク氷河期以降の動物の生命の証拠を提供していました.

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Meiosis II01:57

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Meiosis II is the second and final stage of meiosis. It relies on the haploid cells produced during meiosis I, each of which contain only 23 chromosomes—one from each homologous initial pair. Importantly, each chromosome in these cells is composed of two joined copies, and when these cells enter meiosis II, the goal is to separate such sister chromatids using the same microtubule-based network employed in other division processes. The result of meiosis II is two haploid cells, each containing...