#Question id: 2472
#Unit 2. Cellular Organization
In response to a chemotactic signal, a cell forms structures to aid in locomotion. In lamellipodia, active Rac will stimulate F-actin polymerization at the leading edge via _____, whereas actin that will form stress fibers will be recruited by formin downstream of activation of this small GTPase _____.
#Question id: 2473
#Unit 2. Cellular Organization
A microtubule protofilament is formed by the:
#Question id: 2474
#Unit 2. Cellular Organization
In cells, the gamma-tubulin ring complex is found:
#Question id: 2475
#Unit 2. Cellular Organization
What is a microtubule protofilament?
#Question id: 2476
#Unit 2. Cellular Organization
The alpha and beta tubulin proteins can bind:
#Question id: 2477
#Unit 2. Cellular Organization
Where are microtubules observed to be present in different polarities?