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Keeping a cell's nucleolus compact may be key to fighting agingSmall packages The nucleus holds the cell's chromosomes and the nucleolus where the ribosomal DNA (rDNA) is housed. The nucleolus isolates the rDNA which encodes the RNA portions of the ribosomes ...
This model of the nucleus with nucleolus (pink) shows how ribosomal DNA is correctly repaired in young cells. In old cells with enlarged nucleolus, however, DNA repair is inaccurate leading to ...
The nucleolus may hold the key. Nucleolus: A Key to Aging and Lifespan Regulation The nucleus contains the cell's chromosomes, while the nucleolus houses the ribosomal DNA (rDNA). The nucleolus ...
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