Botany-Transcription
NEET Botany Transcription MCQ Question
Type: MCQ-conceptual-Hard-Class 12
Which of the following statements about transcription and gene structure is correct?
A
RNA polymerase requires initiation and termination factors to start and stop transcription.
B
All genes in eukaryotes are polycistronic due to interrupted coding sequences.
C
Introns appear in mature RNA and are essential for protein coding.
D
Exons are sequences that are removed from the RNA during processing.
Correct Answer
Option A
Detailed Explanation
RNA polymerase catalyzes elongation and associates with initiation-factor (σ) and termination-factor (ρ) for transcription initiation and termination, respectively. Monocistronic genes are typical in eukaryotes, while introns are non-coding sequences that do not appear in mature RNA.
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