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

Question

Quizplus · Accepted Answer

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

The Nucleolus