In a transcription unit,which strands act as | vedclass

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(A) In a transcription unit,the $DNA$ double helix consists of two strands with opposite polarity.One strand,which has the polarity $3' \rightarrow 5'

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$3' \rightarrow 5', 5' \rightarrow 3'$

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(A) In a transcription unit,the $DNA$ double helix consists of two strands with opposite polarity.One strand,which has the polarity $3' \rightarrow 5'$,acts as the template strand because the $RNA$ polymerase enzyme synthesizes $RNA$ in the $5' \rightarrow 3'$ direction using this strand as a template.The other strand,which has the polarity $5' \rightarrow 3'$,is called the coding strand (or sense strand) because its sequence is identical to the $RNA$ produced (except for Thymine being replaced by Uracil).Therefore,the template strand is $3' \rightarrow 5'$ and the coding strand is $5' \rightarrow 3'$.

In a transcription unit,which strands act as the template strand and the coding strand,respectively?

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