Question

GTP hydrolysis and whether GTP or GDP is bound to tubulin is an important mechanism to control the dynamic instability of microtubules. Certain aspects of dynamic instability can be viewed using GFP-EB1. Which process(es) is it useful for visualizing and why?

Choose one:
A. growing and shrinking microtubules, because EB1 binds to the GTP-tubulin cap on microtubules
B. shrinking microtubules, because EB1 binds to the GTP-tubulin cap on microtubules
C. growing microtubules, because EB1 binds to the GTP-tubulin cap on microtubules
D. growing and shrinking microtubules, because EB1 binds to the GDP-tubulin cap on microtubules

Answer 1

Growing microtubules, because EB1 binds to the GTP-tubulin cap on microtubules

Step-by-step explanation:

Growing microtubules, because EB1 binds to the GTP-tubulin cap on microtubules. This process is useful for visualization because EB1 or it homolog recognize the GTP structural cap of growing microtubule ends.