#Question id: 1404
#Unit 4. Cell Communication and Cell Signaling
Which of the following are transcription factors?
#Question id: 11817
#Unit 6. System Physiology – Plant
In the cytokinin pathway a phosphotransfer AHP1 protein is also known as___
#Question id: 2949
#Unit 2. Cellular Organization
A culture of cells is given 3H-thymidine for 30 minutes; then a sample of the cells is fixed and examined by autoradiography. It is found that:
#Question id: 10974
#Unit 7. System Physiology – Animal
A 63-year-old woman returned to work following a vacation in New Zealand. Several days after returning home, she awoke with swelling and pain in her right leg and her leg was blue. She went immediately to the emergency room where an examination showed an extensive deep vein thrombosis involving the femoral and iliac veins on the right side. Following resolution of the clot, this patient will require which treatment in the future?
#Question id: 2581
#Unit 2. Cellular Organization
Match the following toxins (Column I) with their effects (Column II) on actin.
|
Column I |
Column II |
|
A.
Cytochalasin D |
i. Enhances
nucleation by binding and stabilizing actin dimers and thereby lowering the
critical concentration. |
|
B.
Latrunculin |
ii. Binds at
the interface between subunits in F-actin,
locking adjacent subunits together and preventing actin filaments from
depolymerizing. |
|
C.
Jasplakinolide |
iii.
Depolymerizes actin filaments by binding to the (+) end of F-actin, where it
blocks further addition of subunits. |
|
D. Phalloidin |
iv. Binds and
sequesters G-actin, inhibiting it from adding to a filament end. |