RNA Molecule Structure and Secondary Structures Quiz

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Questions and Answers

Which type of RNA can encode for more than one protein in prokaryotes?

  • tRNA
  • rRNA
  • snRNA
  • mRNA (correct)

What is the role of tRNA in protein synthesis?

  • Carrying individual amino acids to ribosomes (correct)
  • Forming ribosomes
  • Splicing RNA
  • Acting as a catalyst

Which enzyme is responsible for RNA synthesis?

  • RNA polymerase (correct)
  • DNA polymerase
  • DNA ligase
  • RNA ligase

What is the function of small nuclear RNAs (snRNAs)?

<p>Splice RNA (A)</p>
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What is the primary role of RNA polymerase in the elongation phase of RNA synthesis?

<p>Reading DNA template and generating mRNA (B)</p>
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How does a-amanitin affect RNA polymerase type 2?

<p>It inhibits mRNA precursors and snRNA production (C)</p>
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What is the impact of Rifampicin on bacterial transcription?

<p>It inhibits the initiation phase of transcription (D)</p>
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Which viral genomes require RNA-directed RNA polymerase for replication?

<p>RNA-based genomes (A)</p>
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What is the structure formed through complementary base pairing within the same RNA molecule?

<p>Stem (B)</p>
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Why is RNA less stable than DNA?

<p>RNA has a single-stranded structure, making it more susceptible to cellular damage. (D)</p>
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What type of RNA possesses enzymatic activity and can cleave either themselves or other RNA molecules?

<p>Ribozyme (B)</p>
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Which type of RNA acts as a template for protein synthesis?

<p>mRNA (D)</p>
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What is the sequence of bases in RNA responsible for providing coding information?

<p>Nucleotide sequence (C)</p>
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What forms when there is no complementary base pairing and bulges form due to mismatches in RNA?

<p>Hairpin loop (B)</p>
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Which type of RNA can take the form of monocistronic where one RNA encodes for one protein?

<p>mRNA (A)</p>
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Polymerase chain reaction (PCR) is used to amplify RNA molecules for sequencing.

<p>False (B)</p>
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Ribosomal RNA (rRNA) is only found in eukaryotic cells.

<p>False (B)</p>
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RNA polymerase reads the DNA sequence from 5' to 3' direction during RNA synthesis.

<p>False (B)</p>
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Small nuclear RNAs (snRNAs) are involved in the synthesis of ribosomal RNA.

<p>False (B)</p>
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Rifampicin inhibits the elongation phase of RNA synthesis.

<p>True (A)</p>
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