Question
FtsZ is a prokaryotic analog of these proteins. For 10 points each:
[10h] Name these proteins whose polymerization is halted by colchicine. The catastrophe stage of dynamic instability is caused by the hydrolysis of GTP molecules bound to one type of these proteins.
ANSWER: tubulins [accept alpha-tubulin or beta-tubulin; reject "microtubules"]
[10e] Alpha-beta-tubulin dimers compose the microtubules that form axonemes to support these whip-like structures and the similar cilia.
ANSWER: flagella [or flagellum]
[10m] In Kirschner and Mitchison's "search and capture" model, dynamic instability drives the binding of microtubules in the mitotic spindle to these protein structures that surround centromeres. The KMN complex associates with these structures via the CCAN.
ANSWER: kinetochores
<Science - Biology>
Data
Summary
| Tournament | Edition | Exact Match? | Heard | PPB | Easy % | Medium % | Hard % |
|---|---|---|---|---|---|---|---|
| 2025 PACE NSC | 06/07/2025 | Y | 42 | 13.10 | 98% | 31% | 2% |