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Which antibiotic inhibits interaction between t-RNA and m-RNA during bacterial protein synthesis?

  • Erythromycin

  • Neomycin

  • Streptomycin

  • Streptomycin


D.

Streptomycin

Tetracyclin interfere with the attachment of t-RNA carrying the amino acid to the m-RNA-ribosome complex preventing the addition of amino acids to the growing polypeptide chain. Streptomycin interfere with the initial steps of protein synthesis by changing the shape of 30S portion of 70S prokaryotic ribosome.
Erythromycin refers with 50S portion of the 70S prokaryotic ribosome.

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The two polynucleotide chains in DNA are

  • parallel

  • discontinuous

  • antiparallel

  • antiparallel


In which mode of inheritance do you expect more maternal influence among the off spring?

  • Autosomal

  • Cytoplasmic

  • Y-linked

  • Y-linked


A sequential expression of a set of human genes occurs when a steroid molecule binds to the

  • transfer RNA

  • messenger RNA

  • DNA sequence

  • DNA sequence


The Okazaki fragments in DNA chain growth

  • result in transcription

  • polymerize in the 3’ - to - 5’ direction and forms replication fork

  • prove semi-conservative natuire of DNA replication

  • prove semi-conservative natuire of DNA replication


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