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Updated: Jul 7, 2026

Determination of Reproductive Competence by Confirming Pubertal Onset and Performing a Fertility Assay in Mice and Rats
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在缺乏CD9的小鼠中,女性生育能力严重下降

F Le Naour1, E Rubinstein, C Jasmin

  • 1Institut National de la Santé et de la Recherche Médicale (INSERM), Unité 268, Hôpital Paul-Brousse, 94800 Villejuif, France.

Science (New York, N.Y.)
|January 15, 2000
PubMed
概括

细胞表面分子CD9 (分化集群9) 对于生育至关重要. CD9淘汰小鼠表现出受损的精子-卵融合,突出显示CD9.

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Meiosis vs. Mitosis02:57

Meiosis vs. Mitosis

Cell division is necessary for growth and reproduction in organisms. Mitosis aids cell growth and development by dividing somatic cells. In contrast, meiosis causes the division of germ cells and plays an essential role in sexual reproduction. Due to their unique functional requirements, mitosis and meiosis differ from each other in multiple aspects.
Before the start of mitosis and meiosis I, the cell synthesizes DNA, resulting in two homologous copies of each chromosome. DNA synthesis is...