Question:
In eukaryotes, the entire base sequence of a gene do not appear in mature RNA because
In eukaryotes, the entire base sequence of a gene do not appear in mature RNA because
Updated On: Apr 14, 2026
- transcription in eukaryotes consumes more energy.
- coding sequences are removed during processing.
- introns are removed during processing.
- some gene sequences are removed by exonuclease.
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The Correct Option is C
Approach Solution - 1
Eukaryotic genes contain introns (non-coding sequences) and exons (coding sequences).
During RNA splicing, introns are removed from pre-mRNA, and exons are joined to form mature mRNA.
Incorrect Options:
- (A) Transcription energy is irrelevant to sequence removal.
- (B) Coding sequences (exons) are retained, not removed.
- (D) Exonucleases degrade RNA from ends, not selectively remove introns.
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Approach Solution -2
Eukaryotic genes contain:
- Exons: Coding sequences.
- Introns: Non-coding sequences spliced out from pre-mRNA.
- Mature mRNA contains only exons.
The correct answer is (C) Introns are removed during processing.
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