What are the different types of RNA found in the cell?
There are three types of RNA found in the cell. They are named as messenger RNA (m-RNA), ribosomal RNA (r-RNA) and transfer RNA (t-RNA).
These RNA molecules perform different functions and are responsible for carrying out protein synthesis in the cell. While DNA contains the coded message for proteins to be synthesised, it is these RNA molecules that actually carry out the synthesis process.
Explanation
This is a direct factual question from NCERT Chemistry Class 12, Chapter 10 (Biomolecules). The textbook explicitly states that RNA molecules are of three types: messenger RNA (m-RNA), ribosomal RNA (r-RNA), and transfer RNA (t-RNA). The context also mentions that these RNA molecules carry out protein synthesis in the cell. For a 2-mark question, students should list all three types of RNA with their full names and abbreviations.