The nucleolus
A)is surrounded by a thin nucleolar membrane.
B)contains the NOR of rRNA genes.
C)synthesizes ribosomal proteins.
D)is found one per cell in eukaryotes.
E)all of the above

Question

Quizplus · Accepted Answer

The nucleolus contains the nucleolar organizer regions (NOR) of rRNA genes, which are essential for ribosome biogenesis. It is not surrounded by a membrane, does not synthesize ribosomal proteins, and there can be more than one nucleolus per cell in eukaryotes.

The Nucleolus