The γ-Tubulin Ring Complex is to Microtubules What … Is

Question

The γ-tubulin ring complex is to microtubules what … is to actin filaments.
A) the Arp 2/3 complex
B) the dynactin complex
C) the troponin complex
D) formin
E) contractile ring

Accepted Answer

They both nucleate the filaments and remain bound to the minus end. They also both employ homologs of the filament subunits to catalyze nucleation.