Molecular Basis of Inheritance Question 124
124. Select the correct option:
[2014] Direction of RNA Direction of reading of synthesis the template DNA strand
(a) $5 \cdot-3$
(b) $3-5$
(c) $5^{\prime}-3^{\prime}$
(d) $3^{\prime}-5^{\prime}$
Show Answer
Answer : a
Hints & Solution
(a) Synthesis of RNA exhibits several features that are synonymous with DNA replication. RNA synthesis requires accurate and efficient initiation, elongation proceeds in the $5^{\prime} \to 3^{\prime}$ ’ direction (i.e. the polymerase moves along the template strand of DNA in the $3^{\prime} \to 5^{\prime}$, direction), and RNA synthesis requires distinct and accurate termination.
