Cell Biology Question:

Of what substances is the nucleolus made? Is there a membrane around the nucleolus?

Cell Biology Interview Question
Cell Biology Interview Question

Answer:

Nucleolus is a region within the nucleus made of ribosomal RNA (rRNA) and proteins. It is not delimited by membrane.


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How is the fluid that fills the nucleus called?What is the name of the membrane that delimits the nucleus? To which component of the cell structure that membrane is contiguous?