According to the current model,which of the following is the correct sequence of microtubule assembly?
A)dimers, oligomers, sheets of protofilaments, protofilaments, closing of microtubule, elongating microtubule
B)dimers, sheets of protofilaments, closing of microtubule, oligomers, protofilaments, elongating microtubule
C)dimers, oligomers, protofilaments, sheets of protofilaments, closing of microtubule, elongating microtubule
D)protofilaments, sheets of protofilaments, closing of microtubule, elongating microtubule, dimers, oligomers
E)dimers, oligomers, protofilaments, elongating microtubule, sheets of protofilaments, closing of microtubule

Question

Quizplus · Accepted Answer

The current model proposes that dimers of alpha and beta tubulin assemble in a head-to-tail fashion to form protofilaments, which then associate laterally to form sheets of protofilaments. These sheets then roll into a closed cylindrical shape, forming the microtubule. The microtubule then elongates by addition of more alpha-beta dimer subunits to the exposed ends of the protofilaments.

According to the Current Model,which of the Following Is the Correct