Question

Identify the correct definitions of the following molecular biology terms:
I. Splicing = Removal of introns
II. Capping = Addition of unusual methyl guanosine triphosphate added to 5" end of hn RNA
III. Tailing = Deletion of adenylate residues at 3'end of hn RNA
IV. Anticodon= Specifies termination of polynucleotide chain

• A. I and II
• B. II and III
• C. III and IV
• D. I and IV

Hint:

Post-transcriptional modifications include capping, splicing, and tailing before mRNA exits the nucleus.

Answer 1

The Correct Option is A

Step 1: Understanding Molecular Biology Processes

- Splicing → Removal of introns from hnRNA.
- Capping → Addition of methyl guanosine triphosphate to the 5’ end of hnRNA.
- Tailing → Involves addition, not deletion, of adenylate residues at 3’ end.
- Anticodon → Does not specify termination of the polypeptide chain.