Which of the following best describes the role of β-tubulin in microtubule polymerization?
Question 2
A cell is treated with α-amanitin, a potent inhibitor of RNA polymerase II. Which of the following cytoskeletal components would be most directly affected in its synthesis and subsequent cellular function?
Question 3
Which of the following statements accurately describes the role of α-tubulin within the microtubule structure?
Question 4
The drug phalloidin binds to and stabilizes F-actin, preventing its depolymerization. Which of the following cellular processes would be most significantly impaired by phalloidin treatment?
Question 5
Which of the following best describes the structural hierarchy of intermediate filaments, from monomer to mature filament?
