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TLS Online TPP Program

#Question id: 12834

How Aurora B and the spindle assembly checkpoint pathway collaborate during every cell cycle to accurately attach every single pair of sister chromatids to the mitotic spindle in the correct, bioriented manner?

#Unit 2. Cellular Organization
  1. Aurora B phosphorylate microtubule-binding component of the kinetochore, the Ndc80 complex, leads to the generation of attached kinetochores, which are recognized by the spindle assembly checkpoint pathway.
  2. Aurora B phosphorylate microtubule-binding component of the kinetochore, the Ndc80 complex, leads to the generation of unattached kinetochores, which are recognized by the spindle assembly checkpoint pathway.
  3. Aurora B dephosphorylate microtubule-binding component of the kinetochore, the Ndc80 complex, leads to the generation of unattached kinetochores, which are recognized by the spindle assembly checkpoint pathway.
  4. Aurora B ubiquitinylates microtubule-binding component of the kinetochore, the Ndc80 complex, leads to the degradation of unattached kinetochores, which are recognized by the spindle assembly checkpoint pathway.
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TLS Online TPP Program

#Question id: 22971

#Unit 7. System Physiology – Animal

PTH actions on the kidney:
a. Stimulates phosphate reabsorption
b. Stimulates Ca2+ reabsorption
c. Inhibits phosphate reabsorption
d. Inhibits Ca2+ reabsorption
TLS Online TPP Program

#Question id: 22972

#Unit 7. System Physiology – Animal

Parathyroid hormone stimulates calcitriol production in the kidney by increasing the synthesis of 
TLS Online TPP Program

#Question id: 22973

#Unit 7. System Physiology – Animal

Which enzyme converts 25-hydroxycholecalciferol to the active form, 1,25-dihydroxycholecalciferol.
TLS Online TPP Program

#Question id: 22974

#Unit 7. System Physiology – Animal

In the intestine, 1,25-dihydroxycholecalciferol induces the synthesis of 
TLS Online TPP Program

#Question id: 22975

#Unit 7. System Physiology – Animal

1,25-dihydroxycholecalciferol stimulates the,
a. Secretion of phosphate ions from kidney
b. Secretion of calcium from kidney
c. Reabsorption of calcium from kidney
d. Reabsorption of phosphate ions from kidney
TLS Online TPP Program

#Question id: 22976

#Unit 7. System Physiology – Animal

In bone, 1,25-dihydroxycholecalciferol acts synergistically with PTH to stimulate