Question

Microtubules form from dimers of _____ and ______ subunits that polymerize into a ____________blank.

Answer 1

Microtubules form from dimers of Alpha and Beta subunits that polymerize into a hollow tube. Alpha and beta subunits refer to tubulin. There are things that can stop this from happening, and when one of these events occurs, de-polymerization is called "catastrophe".