Which of the classes of RNA molecules is produced in the nucleolus?
A) ribosomal RNA
B) transfer RNA
C) messenger RNA
D) primary mRNA transcript
E) ribozymes

Question

Quizplus · Accepted Answer

Ribosomal RNA (rRNA) is produced in the nucleolus, which is a region of the nucleus. The nucleolus is responsible for the transcription and processing of rRNA, which is a structural component of ribosomes along with proteins. Transfer RNA (tRNA) and messenger RNA (mRNA) are produced in the nucleus, but not specifically in the nucleolus. Primary mRNA transcripts are also produced in the nucleus, but are further processed and modified in the cytoplasm. Ribozymes are not a class of RNA molecules produced in the nucleolus.

Which of the Classes of RNA Molecules Is Produced in the Nucleolus