MCQ on RNA Structure and Functions







RNA, or Ribonucleic Acid, is a molecule essential for various biological processes. It consists of a single strand of nucleotides, including adenine (A), uracil (U), cytosine (C), and guanine (G). RNA plays a central role in protein synthesis, gene expression, and carries genetic information in some viruses. This is an MCQ on RNA Structure and Functions.

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1. 
What does RNA stand for?

2. 
Which of the following is NOT a type of RNA?

3. 
What is the primary function of messenger RNA (mRNA)?

4. 
Which RNA molecule carries amino acids to the ribosome during protein synthesis?

5. 
Which type of RNA is a major component of the ribosome, the cellular structure responsible for protein synthesis?

6. 
In eukaryotic cells, where is the site of mRNA synthesis?

7. 
What is the function of small nuclear RNA (snRNA) in the cell?

8. 
Which type of RNA is involved in the splicing of pre-mRNA during gene expression?

9. 
What is the role of ribozymes in RNA?

10. 
Which RNA molecule is often involved in regulating gene expression and is essential for the formation of the transcription initiation complex?

11. 
What is the function of ribonucleoproteins (RNPs) in RNA processing?

12. 
Which RNA type is known for its role in silencing or degrading specific mRNA molecules to regulate gene expression?

13. 
What is the name of the enzyme that carries out reverse transcription in retroviruses like HIV?

14. 
Which RNA type primarily functions as a scaffold to guide and organize protein complexes in the cell?

15. 
In eukaryotes, what is the common structure at the 5' end of mRNA that is essential for translation initiation?

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MCQ on RNA




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