Ncert Exercises & Solutions

Q. 15. Which of the following steps in transcription is catalyzed by RNA polymerase?

(a) Initiation

(b) Elongation

(c) Termination

(d) All of these

Ans. (b). The DNA dependent RNA polymerase helps in DNA replication by catalyzing the polymerization in only one direction, i.e., 5' $\to$ 3'.