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 rRNA molecules fold into complex secondary and tertiary structures, forming domains and motifs that are essential for ribosome function. The rRNA structures also provide binding sites for ...
The nucleolus may hold the key. 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 ...
The nucleolus may hold the key. 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 ...