Question

mRNA is synthesised on DNA template in which direction:

• A. $5^{\prime }\to 3^{\prime }$
• B. $3^{\prime }\to 5^{\prime }$
• C. Both
• D. Any

Answer 1

The correct option is B $3^{\prime }\to 5^{\prime }$

RNA polymerase is responsible for the synthesis of mRNA from the DNA template. While the DNA template runs in the direction 3' → 5', the newly synthesised mRNA strand is in 5' → 3'.