Microtubules are strings of tubulin proteins that are formed from a
A)dimer of α-tubulin.
B)single string of α-tubulin.
C)dimer of one α-tubulin and one β-tubulin.
D)hexamer of α-tubulins and β-tubulins twisted together.

Question

Quizplus · Accepted Answer

Microtubules are formed from a dimer of one α-tubulin and one β-tubulin protein. The dimers then assemble to form the long string-like structure of the microtubule.

Microtubules Are Strings of Tubulin Proteins That Are Formed from a