A transcription unit in $DNA$ is defined primarily by the three regions in $DNA$ and these are with respect to upstream and down stream end;
NEET 2024, Medium
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A transcription unit of $DNA$ is defined primarily by the three regions in the $DNA$:
A transcription unit of $DNA$ is defined primarily by the three regions in the $DNA$:
($i$) A promoter
($ii$) The structural gene
($iii$) A terminator
The promoter is said to be located towards $5^{\prime}$-end (upstream) of the structural gene (the reference is made with respect to the polarity of coding strand)
The terminator is located towards $3^{\prime}$-end (downstream) of the coding strand.
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