Microtubules are composed of monomers of
A) $\alpha$- and $\beta$-tubulin.
B) actin.
C) non-muscle myosin.
D) myosin motor proteins.
E) keratin proteins.

Question

Quizplus · Accepted Answer

Microtubules are composed of α- and β-tubulin monomers. Each monomer consists of a globular protein subunit called tubulin, which has a GTP-binding site. The two types of tubulin form dimers, which assemble in a head-to-tail manner to form protofilaments, which in turn associate laterally to form the microtubule.

Microtubules Are Composed of Monomers of A) α\alphaα - And β\betaβ -Tubulin B) Actin

Microtubules Are Composed of Monomers of
A) $\alpha$ - And $\beta$ -Tubulin
B) Actin