Question

what is the function of the nucleolus?
a synthesize proteins
b store dna
c break down molecules
d build ribosomes

Explanation:

The nucleolus is a structure within the nucleus of a cell. Its main function is related to ribosome biogenesis. Let's analyze each option:

• Option a: Protein synthesis occurs on ribosomes (not directly in the nucleolus).
• Option b: DNA is stored in the nucleus (not specifically in the nucleolus).
• Option c: Breaking down molecules is a function of lysosomes (not the nucleolus).
• Option d: The nucleolus is involved in the production and assembly of ribosomal subunits, which then come together to form ribosomes.

Answer:

d. build ribosomes