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5.Molecular Basis of Inheritance
medium
Select the correct option.Direction of Direction of reading of $RNA$ synthesis the template $DNA$ strand
| Direction of $RNA$ synthesis | Direction of reading of the template $DNA$ |
| $(a)$ $5'-3'$ | $3'-5'$ |
| $(b)$ $3'-5'$ | $5'-3'$ |
| $(c)$ $5'-3'$ | $5'-3'$ |
| $(d)$ $3'-5'$ | $3'-5'$ |
A
$(a)$
B
$(b)$
C
$(c)$
D
$(d)$
(NEET-2014)
Solution
(a) : RNA polymerase initiates and extends the $RNA$ (chain elongation) and functions always in $5'$ to $3'$ direction. The structural component of $DNA$ has $3'$ to $5'$ polarity. It is also called template $DNA$ strand or antisense $(-)$ strand.
Standard 12
Biology
