What is the function of mRNA?

• A. Stores Genetic Information
• B. Catalyzes Peptide Bonds
• C. Forms Ribosomes
• D. Carries Genetic Information From DNA to Ribosome to Guide Protein Synthesis

Answer: (D)

Messenger RNA serves as the messenger that carries the genetic information from DNA to the ribosome, where that information is used to guide the sequence of amino acids in a protein. It is produced by transcription from DNA and then provides the codon sequence that directs ribosomes and tRNAs during translation. In other words, mRNA is the template that translates genetic instructions into a growing polypeptide chain. The other options describe roles for DNA (storing genetic information) or for the ribosome and its components (catalyzing peptide bonds or forming ribosomes), not for mRNA itself.