RNA MCQs with answers Page - 4

You will find multiple-choice questions (MCQs) related to #RNA here. Go through these questions to prepare effectively for your upcoming exams and interviews.

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Q. What are the coding regions of mRNA called?

  • (A) Introns
  • (B) Exons
  • (C) Codons
  • (D) Splices

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Q. Which type of RNA helps initiate translation?

  • (A) Initiator tRNA
  • (B) mRNA
  • (C) rRNA
  • (D) snRNA

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Q. The sequence of three nucleotides on mRNA that codes for one amino acid is called?

  • (A) Anticodon
  • (B) Codon
  • (C) Intron
  • (D) Exon

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Q. Which RNA is responsible for the removal of non-coding sequences in pre-mRNA?

  • (A) snRNA
  • (B) tRNA
  • (C) rRNA
  • (D) mRNA

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Q. In retroviruses, genetic information flows from RNA to DNA. This process is called?

  • (A) Reverse transcription
  • (B) Translation
  • (C) Translocation
  • (D) Replication

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Q. Which RNA molecule forms hydrogen bonds with DNA during transcription?

  • (A) rRNA
  • (B) mRNA
  • (C) tRNA
  • (D) snRNA

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Q. What is the main difference between mRNA in prokaryotes and eukaryotes?

  • (A) Eukaryotic mRNA is not processed
  • (B) Prokaryotic mRNA contains introns
  • (C) Eukaryotic mRNA undergoes splicing and capping
  • (D) Prokaryotic mRNA has a poly-A tail

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Q. Which of these is NOT a function of RNA?

  • (A) Acting as an enzyme
  • (B) Carrying genetic code in some viruses
  • (C) Replication of DNA strands
  • (D) Protein synthesis

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Q. Which RNA modification adds stability to eukaryotic mRNA?

  • (A) Addition of 5’ cap and poly-A tail
  • (B) Removal of exons
  • (C) Formation of introns
  • (D) Breaking hydrogen bonds

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Q. Which RNA helps in the degradation of viral RNA?

  • (A) miRNA
  • (B) siRNA
  • (C) snRNA
  • (D) tRNA
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