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Mouse Cell Nuclei During Meiosis

Mouse Cell Nuclei During Meiosis
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Description: Fluorescence micrograph of mouse cell nuclei during meiosis.

Blue stain: DNA; green: paired-up chromosomes before crossing over;
Red stain: BRCA1, which is clustered around telomeres and the sex chromosomes.

This checkpoint protein is involved in DNA repair in mitosis (DNA damage) and meiosis (sealing crossover breaks), and in X chromosome inactivation.
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Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=48844
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