MediumNEET 2026
+4 / -1
Which of the following statements are correct with reference to a transcription unit?
A
A transcription unit in DNA is defined primarily by three regions: promoter, structural gene and terminator.
B
The promoter is said to be located towards the 5′ end of the structural gene.
C
The promoter is a DNA sequence that provides the binding site for RNA polymerase.
D
The promoter defines the template and coding strands.
Explanation
A transcription unit consists of a promoter, structural gene, and terminator. The promoter lies upstream (5′ end), serves as the RNA polymerase binding site, determines the template and coding strands, and the terminator marks the end of transcription near the 3′ end of the coding strand.
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