Home⇒ Medical Science⇒ Microbiology⇒ Translation and regulation
| 1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
| 2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
| Q1 ⇒ Which stop codon has been found to encode selenocysteine? UGA [other wrong options] [Discuss in forum] |
| Q2 ⇒ Which of the following three codons translate as serine (Ser)? AGU [other wrong options] [Discuss in forum] |
| Q3 ⇒ The nonsense codon(s) is/are all of these [other wrong options] [Discuss in forum] |
| Q4 ⇒ Site in the ribosome from which the tRNA donates amino acids to the growing polypeptide chain is P site [other wrong options] [Discuss in forum] |
| Q5 ⇒ The interaction between the mRNA and tRNA determined the position of amino acid in a polypeptide sequence. This is called the adaptor hypothesis [other wrong options] [Discuss in forum] |
| Q6 ⇒ Which of the following modified amino acid is used at the starting of most prokaryotic proteins? N-formylmethionine [other wrong options] [Discuss in forum] |
| Q7 ⇒ Which binding is inhibited by pactamycin? Initiator-tRNA to 30S/40S initiation complexes [other wrong options] [Discuss in forum] |
| Q8 ⇒ What is the maximum number of different amino acids in a polypeptide chain coded by the synthetic polyribonucleotides (UCAG)5? Three [other wrong options] [Discuss in forum] |
| Q9 ⇒ The Shine-Dalgarno sequence is a short sequence that acts as a ribosomal binding site [other wrong options] [Discuss in forum] |
| Q10 ⇒ Which of the following molecule catalyzes the transpeptidation reaction? Peptidyl transferase [other wrong options] [Discuss in forum] |
| Q11 ⇒ Which phage always carries a small piece of E.coli genome? Mu [other wrong options] [Discuss in forum] |
| Q12 ⇒ What is the action of tetracycline in prokaryotes? It blocks the binding of amino-acyl tRNA to the A site of ribosomes [other wrong options] [Discuss in forum] |
| Q13 ⇒ Three stop codons, which aids in termination of translation are also known as nonsense codons [other wrong options] [Discuss in forum] |
| Q14 ⇒ The final step of gene expression is protein synthesis, which is also known as translation [other wrong options] [Discuss in forum] |
| Q15 ⇒ A quorum sensing system senses a compound produced by the bacterium itself [other wrong options] [Discuss in forum] |
| Q16 ⇒ The ribosome binding site is located immediately upstream of the start codon [other wrong options] [Discuss in forum] |
| Q17 ⇒ When was the genetic code completed? 1966 [other wrong options] [Discuss in forum] |
| Q18 ⇒ What are the Svedberg values for the subunits of the 70S ribosomes of E. colli? 50S and 30S [other wrong options] [Discuss in forum] |
| Q19 ⇒ During amino acid activation a(n) amino acid is bound to tRNA [other wrong options] [Discuss in forum] |
| Q20 ⇒ Which of the following is a nontranslated sequence located between the transcription and the translation start site? Leader sequence [other wrong options] [Discuss in forum] |
| Or |