Q. During which of the following process a new copy of a DNA molecule is precisely synthesized?

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Q. DNA gyrase is inhibited by

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

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

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

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

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

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Q. Which binding is inhibited by pactamycin?

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Q. 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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Q. Negative regulation of protein synthesis is accomplished by

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

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Q. When was the genetic code completed?

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

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

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

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

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

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

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Q. The development of global regulatory systems in prokaryotes

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

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