Botany-DNA Structure
NEET Botany DNA Structure MCQ Question
Type: MCQ-fact-Medium-Class 12
What defines a structural gene in a eukaryotic transcription unit?
A
A segment of DNA coding for a polypeptide
B
A segment of RNA coding for a protein
C
A sequence of nucleotides that does not contain exons
D
A region of DNA that only contains introns
Correct Answer
Option A
Detailed Explanation
In eukaryotes, a structural gene is defined as a segment of DNA coding for a polypeptide, which can be monocistronic and contains exons and introns, as stated in the provided context.
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