Domains of Life; Prokaryotic vs. Eukaryotic Cells

ID #1094

Once the nucleus produces ribosomes, do any of the ribosomes remain in the nucleus?

No, the job of a functional ribosome is to synthesize proteins, and protein synthesis (called translation) occurs in the cytoplasm and not in the nucleus. As we'll see, a ribosome is actually two pieces, and those pieces are exported from the nucleus before they are put together. So there are no functional ribosomes in the nucleus. We'll be going over this in a lot more detail pretty soon....

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