Which of the following is NOT the morphological characteristics of senescent cells?
A. increased cell size
B. ruptured plasma membrane
C. flat cytoplasm
D. enlarged cytoplasm
查看答案
The drug taxol acts to
A. block microtubule assembly.
B. stabilizes microtubule against depolymerization.
C. promote cell division
D. sever microtubules
Which of the following techniques is powerful for identification of new signaling components?
A. Mass spectrometry
B. Flow cytometry
Confocal microscopy
D. Electron microscopy
During anaphase B, full separation of spindle poles requires the action of:
A. polar microtubules (polar MTs)
B. astral microtubules (astral MTs)
C. kinesins and dynein
D. All above.
Intermediate Filaments (IFs) use the motor protein:
A. Dynein
B. Myosin
C. Kinesin
D. None