* Messenger RNA (mRNA): mRNA carries the genetic code from the DNA to the ribosome. It is used as a template for protein synthesis.

* Transfer RNA (tRNA): tRNA molecules bring amino acids to the ribosome in the correct order, as specified by the codon sequence in mRNA. Each tRNA molecule is specific for a particular amino acid.

* Ribosomal RNA (rRNA): rRNA is a component of the ribosomes, the cellular structures where protein synthesis takes place. It helps to catalyze the formation of peptide bonds and maintain the structure of the ribosome.