<prompt> Which of the following enzyme s paicipate in protein synthesis:DNA ligaseDNA HelicasePeptidasePeptidyl transferase  <response>: Ans: d. Peptidyl transferaseRef Harper 30th422-24, 28th359-66, 323; Lippincott 4th438-42; Chatterjea Shinde 7th248-501Enzyme Required for TranslationAmino-acyl-t-RNA synthetase: Enzyme required for activation of amino acids, Peptide synthetase peptidyl transferaseThe NH2 of new aminoacyl t - RNA AI in A site combine with the - COOH group of Met - t -RNA occupying the P site. The reaction is catalyzed by peptidyl transferase. Peptidases degrades proteins to amino acidsThe NH2 of new aminoacyl t - RNA AI in A site combine with the - COOH group of Met - t -RNA occupying the P site. The reaction is catalyzed by peptidyl transferase . peptidases degrades proteins to amino acids.ProteinfunctionDNA polymerasesDeoxynucleotide polymerizationHelicasesProcessive unwinding of DNATopoisomerases Relieve torsional strain that results from helicase-induced unwindingDNA primaseInitiates synthesis of RNA primersSingle-strand binding proteinsPrevent premature reannealing of dsDNADNA ligaseSeals the single strand nick between the nascent Okazaki chain and fragments on tagging strand 