Which of the cell organelles includes RNA?

Correct option is B

The correct answer is (b) Ribosome

• Ribosomes are the site of protein synthesis in the cell and are composed of ribosomal RNA (rRNA) and proteins.

• RNA plays a critical role in translating genetic information from mRNA into amino acid sequences.

• There are three types of RNA involved in protein synthesis:

  • mRNA (messenger RNA)

  • tRNA (transfer RNA)

  • rRNA (ribosomal RNA) → Major component of ribosomes.

Information Booster:
• Ribosomes may be free-floating in the cytoplasm or attached to the rough endoplasmic reticulum (RER).
• In prokaryotes, ribosomes are 70S; in eukaryotes, they are 80S.
• RNA is also found in other organelles like nucleus, nucleolus, mitochondria, and chloroplasts.
• Ribosomes are non-membranous organelles.
• The nucleolus is the site where rRNA is synthesized and ribosomal subunits are assembled.