Molecular Biology Quiz
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Questions and Answers

Which of the following roles does ribosomal RNA (rRNA) not directly participate in during the translation process?

  • Catalyzing peptide bond formation
  • Carrying amino acids to the ribosome (correct)
  • Acting as a scaffold for proteins to form ribosomes
  • Ensuring the proper alignment of the mRNA and tRNAs

    • What is the main function of the promoter in the transcription process?

  • Initiating the unwinding of the DNA helix
  • Enabling the binding of RNA polymerase to DNA (correct)
  • Allowing the binding of tRNA to mRNA
  • Terminating the transcription process

    • What ensures the proper start of the protein synthesis in an mRNA molecule?

  • RNA polymerase binding site
  • Specific triplet near the 5’-end (correct)
  • Stop codon at the 3’ end
  • Promoter region upstream of the gene

    • What is the significance of the genetic code being almost universal?

    <p>The same triplet codon in mRNA codes for the same amino acid across nearly all organisms (D)</p> Signup and view all the answers

    Which transcription factor is immediately upstream from the gene in order to start the process of transcription?

    <p>RNA polymerase (A)</p> Signup and view all the answers

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