Come on guys... this is basic bio, freshman stuff.
Action- MreB, and tubulin-FtsZ are examples of:
a) convergent evolution
b) divergent evolution
a) convergent evolution
b) divergent evolution
Sharing a (relatively recent) common ancestor = divergent.
Basis:
But where did microtubules come from? It now appears that tubulins share a common ancestor with a protein called FtsZ, a key player in bacterial cell division.
Has it occured to you yet that if you're going to question credentials, you really need to question the credentials of the authors of the study, or at least of the article? If neither the article nor the study is badly done, and the result doesn't support the "fundies"--of which you aren't one, but whose right to be silly you get all snarly over-- then you and they are still out of luck.