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TLS Online TPP Program

#Question id: 1186

Which of the following explains why Ras is activated quickly by RTKs?

#Unit 4. Cell Communication and Cell Signaling

  1. RTKs phosphorylate Ras.

  2. Ras changes conformation upon ligand binding to prepare for activation.

  3. Ras binds phosphotyrosine residues on RTKs.

  4. Ras is maintained at the plasma membrane through a lipid-mediated attachment.

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TLS Online TPP Program

#Question id: 12443

#Unit 10. Ecological Principles

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#Question id: 4149

#Unit 3. Fundamental Processes

Glycosylation of proteins inside the endoplasmic reticulum does not involve:
TLS Online TPP Program

#Question id: 5111

#Unit 5. Developmental Biology

Once the germ layers are established, the cells interact with one another and rearrange themselves to produce tissues and organs. This process is called:
TLS Online TPP Program

#Question id: 29010

#Unit 7. System Physiology – Animal

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TLS Online TPP Program

#Question id: 10708

#Unit 10. Ecological Principles

Which of the following statements is a likely explanation for why invasive species take over communities into which they have been introduced?