試題詳解

19. You have discovered a strain of E. coli that grows very slowly-the generation time is nearly 12 hours compared to the normal 20-30 minutes. Upon further investigation, you find a mutation in the DNA polymerase III gene. What subunit of the holoenzyme, does this mutation affect the most.
(A) α
(B) β
(C)γ
(D) ψ