Gujarati
Hindi
5.Molecular Basis of Inheritance
medium

Select the correct option:

Direction of $RNA$                 Direction of reading of
  synthesis                                the template $DNA$ strand

A

$5´—3´$                $3´—5´$

B

$3´—5´$              $5´—3´$

C

$5´—3´$              $5´—3´$

D

$3´—5´$              $3´—5´$

(AIIMS-2014)

Solution

Synthesis of $RNA$ exhibits several features that are synonymous with $DNA$ replication. $RNA$ synthesis requires accurate and efficient initiation, elongatio proceeds in the $5'-3'$ direction (i.e. the polymerase moves along the template strand of $DNA$ in the $3'-5'$ direction), and $RNA$ synthesis requires distinct and accurate termination. Transcription exhibits several features that are distinct from replication.

Standard 12
Biology

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