Which of the following is true for nucleolus?

A It takes part in spindle formation

B It is a membrane-bound structure

C Larger nucleoli are present in dividing cells

D It is a site for active ribosomal RNA synthesis

The answer is D.

Solution

Nucleolus synthesises rRNA and is not membrane-bound.

The nucleolus is a non-membranous structure and is a site of rRNA synthesis.

Concept nucleolus-rrna-synthesis

2 questions from this chapter have appeared across 2 exam years.