During transcription,the DNA strand which act | vedclass

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(A) During the process of transcription,only one of the two strands of $DNA$ is copied into $RNA$. This strand is known as the template strand or anti

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$A$ - antisense,$B$ - $3' \rightarrow 5'$

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(A) During the process of transcription,only one of the two strands of $DNA$ is copied into $RNA$. This strand is known as the template strand or antisense strand. The enzyme $RNA$ polymerase catalyzes the polymerization of nucleotides in the $5' \rightarrow 3'$ direction. Therefore,the template strand must have a polarity of $3' \rightarrow 5'$ so that the newly synthesized $RNA$ strand can be formed in the $5' \rightarrow 3'$ direction. Thus,$A$ is the antisense strand and $B$ is $3' \rightarrow 5'$ polarity.

During transcription,the $DNA$ strand which acts as a template is called $A$ strand and it has $B$ polarity.

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