試題詳解

59. Ribosomes are macromolecular machines that perform protein synthesis. Which of the following descriptions concerning ribosome is NOT correct?
(A) The prokaryotic ribosome is a ribozyme catalyzing a peptidyl-transfer reaction.
(B) Each prokaryotic ribosome is composed of a 30S and a 508 component. Here, S is the Svedberg unit.
(C) The 508 ribosomal component has mainly a decoding function and is bound to the mRNA.
(D) Typical prokaryotic ribosomes comprise ~52 different proteins and 3 major RNA.
(E) Ribosomes can self-assemble in vitro.