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Updated: Jun 25, 2025

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微观分析一个活生生的爬行动物的核斑点

Jeniffer Acosta-Cárdenas1,2, Luis Felipe Jiménez-García1, Sarai de Jesús Cruz-Gómez1

  • 1Laboratorio de Nanobiología Celular, Departamento de Biología Celular, Facultad de Ciencias, Universidad Nacional Autónoma de México-UNAM, Mexico City 04510, Mexico.

International journal of molecular sciences
|May 25, 2024
PubMed
概括

核斑点对于细胞拼接至关重要,它们根据雌性的生殖周期而改变形状. 爬行动物的这一发现反映了哺乳动物的观察结果,这表明一种保存的生物机制.

关键词:
美国政府间贸易委员会 (IGC)这种SR蛋白质是SR蛋白质.细胞核的细胞核.核光斑是核光斑的一种.爬行动物 爬行动物 爬行动物核糖核蛋白质是一种核糖核蛋白质.拼接因素 拼接因素

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In 1882, Flemming observed lampbrush chromosomes (LBC) in salamander eggs. Later in 1892, Rückert observed LBCs in shark egg cells and coined the term "lampbrush chromosomes" because they looked like brushes used to clean kerosene lamps.
LBCs are made up of two pairs of conjugating homologous chromatids. Each chromatid consists of alternatively positioned regions of condensed-inactive chromatin and loosely placed-active side loops, which can be contracted and extended. The loops...
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