NEETZoologyMolecular Basis of Inheritance
What is the significance of split-gene arrangements in the genome?
Options
- AIt represents an ancient feature of the genome.
- BIt represents a recent feature of the genome.
- CIt represents the dominance of the DNA-world.
- DIt represents the importance of RNA and DNA-dependent processes in the living system.
Correct answer
A. It represents an ancient feature of the genome.
Step-by-step solution
The second complexity is that the primary transcripts contain both the exons and the introns and are non-functional. Hence, it is subjected to a process called splicing where the introns are removed and exons are joined in a defined order. hnRNA undergoes additional processing called capping and tailing. In capping an unusual nucleotide (methyl guanosine triphosphate) is added to the 5'-end of hnRNA. In tailing, adenylate residues (200-300) are added at 3'-end in a template independent manner. It is the fully proce