Translation and Regulation The role of molecular chaperones is to facilitate binding of RNA polymerase to DNA aid a newly synthesized polypeptide in folding to its proper shape degrade newly synthesized polypeptides that contain inaccurate sequences facilitate binding of ribosomes to mRNA facilitate binding of RNA polymerase to DNA aid a newly synthesized polypeptide in folding to its proper shape degrade newly synthesized polypeptides that contain inaccurate sequences facilitate binding of ribosomes to mRNA ANSWER DOWNLOAD EXAMIANS APP
Translation and Regulation What is the direct cause of cell death by diphtheria toxin? Formation of an ion channel in the cell membrane Induction of apoptosis None of these Inactivation of a translational elongation factor Formation of an ion channel in the cell membrane Induction of apoptosis None of these Inactivation of a translational elongation factor ANSWER DOWNLOAD EXAMIANS APP
Translation and Regulation Which of the following molecule catalyzes the transpeptidation reaction? Peptidyl transferase RNA polymerase DNA ligase DNA polymerase Peptidyl transferase RNA polymerase DNA ligase DNA polymerase ANSWER DOWNLOAD EXAMIANS APP
Translation and Regulation Site in the ribosome from which the tRNA donates amino acids to the growing polypeptide chain is T site O site A site P site T site O site A site P site ANSWER DOWNLOAD EXAMIANS APP
Translation and Regulation What is the action of tetracycline in prokaryotes? It blocks peptidyl transferase reaction on ribosomes Not known with certainity It blocks the binding of amino-acyl tRNA to the A site of ribosomes It blocks translocation reaction on ribosomes It blocks peptidyl transferase reaction on ribosomes Not known with certainity It blocks the binding of amino-acyl tRNA to the A site of ribosomes It blocks translocation reaction on ribosomes ANSWER DOWNLOAD EXAMIANS APP
Translation and Regulation Which of the following is a nontranslated sequence located between the transcription and the translation start site? Trailer sequence Reading frame Leader sequence Ending frame Trailer sequence Reading frame Leader sequence Ending frame ANSWER DOWNLOAD EXAMIANS APP
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