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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?

#Unit 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: 7752

#Unit 5. Developmental Biology

The autophagy pathway included____
a) the catabolic mechanism that delivers cellular components to lysosomes, where they are degraded
b) Autophagy protects the cell from the harmful or lethal effects of damaged or unnecessary proteins and organelles
c) During starvation, the autophagic breakdown and recycling of cellular components also
ensure cellular survival by maintaining cellular energy levels
Which of the following are the correct prediction about autophagy is true?
TLS Online TPP Program

#Question id: 7753

#Unit 5. Developmental Biology

The best-studied type of plant autophagy, specialized organelles called autophagosomes enclose the cytoplasmic components and fuse with the vacuole, this is called
TLS Online TPP Program

#Question id: 7754

#Unit 5. Developmental Biology

In autophagy, the endoplasmic reticulum (ER) first gives rise to a cup-shaped, membranous cisterna called the
TLS Online TPP Program

#Question id: 7755

#Unit 5. Developmental Biology

which type of complex is required for movement of ATG9 from the phagophore assembly site to the peripheral site, where it obtains fresh membrane?
TLS Online TPP Program

#Question id: 7756

#Unit 5. Developmental Biology

Which of the following is serves to regulate the ATG9 membrane shuttle system?
TLS Online TPP Program

#Question id: 7758

#Unit 5. Developmental Biology

Chlorophyll is tightly bound in complexes with proteins. During senescence these chlorophyll–protein complexes must be dismantled to allow the apoproteins to be recycled by___