Split Genes and RNA World Significance — NEET Biology
🔥 Predicted for NEET 2027The significance of such complexities is now beginning to be understood. The split-gene arrangements represent probably an ancient feature of the genome. The presence of introns is reminiscent of antiquity, and the process of splicing represents the dominance of RNA-world. In recent times, the understanding of RNA and RNA-dependent processes in the living system have assumed more importance.
Adjacent to a frequently-asked paragraph in the same chapter.
Which of the following is/are correct regarding post-transcriptional modifications in eukaryotes? (1) Addition of methyl guanosine triphosphate cap at 3′ end. (2) Addition of poly-A tail at 5′ end. (3) Removal of introns and joining of exons. (4) Modifications occur in hnRNA before becoming mRNA. (5) In prokaryotes, these modifications also occur.
View solution & NCERT explanation
Correct answer: B — 3, 4
Capping occurs at 5′ end, tailing at 3′ end. Splicing removes introns. Modifications occur in hnRNA in eukaryotes only. Prokaryotic mRNA is not modified.
What does NCERT say about significance such complexities now?
Has this concept appeared in NEET?
Which chapter is this from?
Through deep analysis of NEET and NTA, 176 of the 180 ReNEET 2026 (June 21) questions were already in the MedicNEET question bank before the exam.
176/180MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.