Q. DNA gyrase is inhibited by

View solution

Q. Which of the following enzymes unwind short stretches of DNA helix immediately ahead of a replication fork?

View solution

Q. During DNA replication in prokaryotes, synthesis begins on the circular chromosome

View solution

Q. DNA replication rates in prokaryotes are approximately of the order of

View solution

Q. Which of the following lacks 3'-5' exonuclease activity?

View solution

Q. The synthesis of DNA by DNA polymerase occurs in the

View solution

Q. Which binding is inhibited by pactamycin?

View solution

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

View solution

Q. Negative regulation of protein synthesis is accomplished by

View solution

Q. Site in the ribosome from which the tRNA donates amino acids to the growing polypeptide chain is

View solution

Q. When was the genetic code completed?

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

Q. The development of global regulatory systems in prokaryotes

View solution

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

View solution

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

View solution