#Question id: 2446
#Unit 2. Cellular Organization
The dynactin protein complex serves to
a. link vesicles and chromosomes to cytosolic dynein light chains.
b. link axonemal dynein to B tubules.
c. enhance the processivity of cytosolic dynein.
d. mediate microtubule attachment to centrosomes.
e. attach kinesin to vesicles.
#Question id: 2447
#Unit 2. Cellular Organization
In the axonemes, the arrangement of nine outer doublet microtubules, as well as the protofilament number of each outer doublet, is specified by
#Question id: 2448
#Unit 2. Cellular Organization
Axonemal dynein
a. may contain two or three head domains.
b. attaches to a B tubule through its base domain.
c. consists of heavy, intermediate and light chains.
d. is a (-) end-directed motor.
e. is an ATPase.
#Question id: 2449
#Unit 2. Cellular Organization
What is the correct order of the stages of mitosis?
a. anaphase
b. metaphase
c. telophase
d. prophase
e. prometaphase
#Question id: 2450
#Unit 2. Cellular Organization
Which of the following contribute(s) to pole separation during anaphase B?
a. cytosolic dynein
b. a (-) end-directed kinesin
c. CENP-E
d. microtubule depolymerisation
e. microtubule polymerization
#Question id: 2451
#Unit 2. Cellular Organization
The average lifetime of microtubules during mitosis is