There are three types of RNA: r-RNA (Ribosomal RNA), t-RNA (Transfer RNA) and m-RNA (Transfer RNA).

• r-RNA (Ribosomal RNA): These RANs are attached to ribosomes and help in protein synthesis. It is made from the DNA of the nucleus. It is 80% of the total RNA present in the cell.
• t-RNA (Transfer RNA): This RNA brings a variety of amino acids to the ribosome for protein synthesis. Protein is made in the ribosome.
• m-RNA (Transfer RNA): It carries information for protein synthesis from the DNA of the nucleus to the ribosome.

Functions of RNA

• RNA facilitate the translation of DNA into proteins.
• RNA works as an adapter molecule in protein synthesis.
• RNA serves as a messenger between the DNA and the ribosomes.
• RNA are the carrier of genetic information in all living cells.