Botany-DNA Structure
NEET Botany DNA Structure MCQ Question
Type: MCQ-conceptual-Easy-Class 12
Which of the following statements about genes and their structure is correct?
A
Exons are coding sequences that appear in mature RNA, while introns are non-coding sequences that are removed.
B
All genes in eukaryotes are polycistronic and consist only of exons.
C
Introns are expressed in mature RNA and are crucial for protein synthesis.
D
Monocistronic genes contain multiple coding sequences within a single transcription unit.
Correct Answer
Option A
Detailed Explanation
Exons are the coding sequences that remain in mature RNA, whereas introns are the non-coding sequences that are removed during RNA processing, as stated in the NCERT context.
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