RNA Polymerases in Eukaryotes — NEET Biology
✅ Asked in NEET 2024In eukaryotes, there are two additional complexities – (i) There are at least three RNA polymerases in the nucleus (in addition to the RNA polymerase found in the organelles). There is a clear cut division of labour. The RNA polymerase I transcribes rRNAs
NTA tests students' knowledge that eukaryotes have three nuclear RNA polymerases (I, II, III) plus organellar polymerases, each with specific roles—RNA polymerase I transcribes rRNA. Students commonly confuse which polymerase transcribes which RNA type, or forget that prokaryotes have only one RNA polymerase while eukaryotes have multiple. The key trap: mixing up that RNA Pol I makes rRNA, Pol II makes mRNA and most snRNAs, and Pol III makes tRNA and 5S rRNA. Remember: the three nuclear polymerases show division of labor in eukaryotes, making gene expression more complex and regulatory than in prokaryotes.
Given below are two statements: Statement I: In eukaryotes, there are three RNA polymerases in the nucleus in addition to the RNA polymerase found in the organelle. Statement II: All the three RNA polymerases in the eukaryotic nucleus have different roles.
Through deep analysis of NEET and NTA, 88 of 90 questions from the NEET 2026 paper were matched straight from the MedicNEET Biology question bank.
88/90MedicNEET's Biology question bank is built from the same NCERT lines NTA picks repeatedly. Not random MCQs — questions crafted exactly like NTA crafts them.