Q. Which of the following statement is correct regarding the process of replication in $E.coli$ ?
A) The DNA dependent DNA polymerase catalyses polymerization in 5’→3’ as well as 3’→5’ direction.
B) The DNA dependent DNA polymerase catalyses polymerization in 5’→3’ direction.
C) The DNA dependent DNA polymerase catalyses polymerization in one direction, that is 3’→5’.
D) The DNA dependent RNA polymerase catalyase polymerization in one direction, that is 5’→3’.
Explanation
[Solution by Claude - not from source] DNA polymerase adds nucleotides only in the $5'\to3'$ direction. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.