Problem:
Question 1: What residue of topisomerase enzymes is important for interacting with the phosphodiester bond?
A) Serine
B) Leucine
C) Threonine
D) Arginine
E) Tyrosine
F) Lysine
G) Phenylalanine
Question 2: During the process of transcription RNA polymerase goes through sweveral conformational changes. The closing of ___________ creates the exit channel for the mRNA.
A) Jaws
B) Door
C) Flap
D) Rudder
Provide the correct answer and justification for your choice.