Why is tRNA called an adapter molecule? What is the meaning of adapter here?

Asked by  | 26th Jun, 2014, 03:58: PM

Expert Answer:

tRNA is called an adapter molecule because it attaches itself via initiation and elongation factors to the ribosome- mRNA complex which facilitates the incorporation of the correct amino acid to the growing polypeptide chain by its specific anticodon to the mRNA codon.

Francis Crick suggested that each amino acid has specific "adapter", a molecule which recognizes specific piece of DNA. Assembly of amino acids is determined by a recognition between the adaptor and DNA molecule which serves as the informational template.

Answered by Sivanand Patnaik | 27th Jun, 2014, 08:27: AM