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TLS Online TPP Program

#Question id: 4976

Which of these is the most likely explanation for the existence of dicynodont fossils on modern-day Antarctica?

#11. Evolution and Behavior

  1. They arrived there aboard ʺraftsʺ of vegetation, and quickly adapted to the bitterly cold climate.

  2. Earthʹs polar regions were once so warm (especially immediately after the ʺsnowball Earth periodʺ) that reptiles and mammal-like reptiles flourished there.

  3. The landmass that is now the Antarctic continent was formerly located at a more-northerly position, and was also united to other landmasses.

  4. Dicynodonts originated on the island continent of Antarctica and went extinct as the continent migrated to its current position at the South Pole.

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TLS Online TPP Program

#Question id: 2269

#2. Cellular Organization

The rough ER is so named because it has an abundance of _______________ on it.
TLS Online TPP Program

#Question id: 782

#1. Molecules and their Interaction Relevant to Biology

Which of the following experimental requirements makes an siRNA approach unsuitable for determining the consequence of silencing a gene of interest in an established cell line?
TLS Online TPP Program

#Question id: 16314

#7. System Physiology – Animal

What is Stress response?
TLS Online TPP Program

#Question id: 10274

#6. System Physiology – Plant

In plastids, a partial glycolysis occurs that produces metabolites for plastidial biosynthetic reactions, which of the following is not synthesized in the plastid?
TLS Online TPP Program

#Question id: 12076

#7. System Physiology – Animal

Furosemide (Lasix) is a diuretic that also produces natriuresis. Which of the following is an undesirable side effect of furosemide due to its site of action on the renal tubule?