The cell cycle - Mitosis....Need Help Quick Please!?

Question

Mitosis involves micro-tubules

Name the protein from which micro-tubules are constructed.

Please help, I've got a vague idea but I need a definite answer please :)

Thanks in advance

Answer 1

Microtubules are built as polymers of α- and β-tubulin hetro-dimers. Basically subunits of α and β tubulin join together to form the heterodimer. The heterodimers then link up in long chains. The process is described fairly well on the wikipedia link below.

Answer 2

microtubule-associated proteins (MAPs)