Mrna Trna Diagram. Messenger rna mrna is a single stranded rna molecule that is complementary to one of the dna strands of a gene. It recognizes mrna codons.
The ribosome on the right is in a more advanced stage of constructing a polypeptide chain because it has trna molecules move into the ribosome. Each trna has an anticodon a set of three nucleotides that binds to a matching mrna codon through base pairing. Difference between mrna trna and rrna.
Here is a very simplified diagram showing the transfer rna for methionine with the methionine attached.
Mrna provides a template for gene coding during protein synthesis trna carries the amino acids to the ribosomes which has to be added to the polypeptide chain and rrna forms ribosomes along with proteins. In the diagram the anti codon is for the amino acid methionine. Transfer rna is a molecule that converts three nucleotide codon sequences in mrna into the proper amino acid. It recognizes mrna codons.