microbiology-translation-and-regulation Related Question Answers

1. Which stop codon has been found to encode selenocysteine?





2. Which of the following is a nontranslated sequence located between the transcription and the translation start site?





3. Which phage always carries a small piece of E.coli genome?





4. The final step of gene expression is protein synthesis, which is also known as





5. What is the maximum number of different amino acids in a polypeptide chain coded by the synthetic polyribonucleotides (UCAG)5?





6. What is the direct cause of cell death by diphtheria toxin?





7. The development of global regulatory systems in prokaryotes





8. The interaction between the mRNA and tRNA determined the position of amino acid in a polypeptide sequence. This is called the





9. What are the Svedberg values for the subunits of the 70S ribosomes of E. colli?





10. Which of the following three codons translate as serine (Ser)?





11. The role of molecular chaperones is to





12. What is the action of tetracycline in prokaryotes?





13. A quorum sensing system





14. The Shine-Dalgarno sequence is





15. What was the first bacterial genome to be sequenced and made public?





16. Which of the following modified amino acid is used at the starting of most prokaryotic proteins?





17. During amino acid activation a(n)





18. The nonsense codon(s) is/are





19. Which of the following defines an open reading frame (ORF)?





20. Three stop codons, which aids in termination of translation are also known as





21. The ribosome binding site





22. Which of the following molecule catalyzes the transpeptidation reaction?





23. Which of the termination codon is called amber?





24. Which binding is inhibited by pactamycin?





25. Which of the following act as the blueprint or template for the process of protein synthesis that takes place on ribosomes?





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