Zoology - Molecular Basis of Inheritance Question with Solution | TestHub
ZoologyMolecular Basis of InheritanceTranscriptionMedium2 minPYQ_2026
ZoologyMediumsingle choice
Which of the following enzymes synthesizes precursor mRNA ?NEET 2026 (Re-NEET)
Options:
Answer:
C
Solution:
In eukaryotes, there are three major types of RNA polymerases:
RNA polymerase I transcribes rRNAs (28S, 18S, and 5.8S).
RNA polymerase II transcribes the precursor of mRNA, which is known as heterogeneous nuclear RNA (hnRNA).
RNA polymerase III is responsible for the transcription of tRNA, 5S rRNA, and snRNAs.
Therefore, RNA polymerase II synthesizes precursor mRNA.
Answer: RNA polymerase II
Stream:NEETSubject:ZoologyTopic:Molecular Basis of InheritanceSubtopic:Transcription
⏱ 2mℹ️ Source: PYQ_2026
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