- A Addition of a poly-A tail at the 3 prime end
- B Addition of a methyl guanosine cap at the 5 prime end
- C Removal of introns and joining of exons
- D Conversion of mRNA back into DNA
Correct answer: C. Removal of introns and joining of exons
Explanation: Splicing is the removal of non-coding intron sequences from hnRNA and the joining of coding exons to form mature mRNA.
Concept context
DNA structure, replication, transcription, translation, the genetic code, and gene regulation (lac operon). The single most important chapter for NEET molecular biology.