The role of rRNA in gene expression is to

A. initiate DNA replication.

B. silence genes that shouldn't be expressed.

C. form part of the ribosome.

D. base pair with DNA strands.

Answer: The role of rRNA in gene expression is to form part of the ribosome.

C

Explanation:

Ribosomes consist of two major components: the small ribosomal subunits, which read the RNA, and the large subunits, which join amino acids to form a polypeptide chain. Each subunit consists of one or more ribosomal RNA (rRNA) molecules and a variety of ribosomal proteins (r-protein or rProtein).