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- Standard 12
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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
