Why don bacterial cells have nucleoli?
That’s a great question, and it points up one of the big differences between eukaryotic and prokaryotic cells. Most prokaryotic cells have only a handful of genes for the ribosomal RNA molecules that make up ribosomes. They transcribe those genes and also synthesize the 70 or 80 proteins that make up ribosomes, and the ribosomes are assembled at dispersed sites throughout the cell that are too small to see in the light microscope.
