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TLS Online TPP Program

#Question id: 1245

Many PTB-containing proteins act as docking sites for multiple proteins. If these proteins are involved in the RTK signal transduction pathway, they most likely:

#Unit 4. Cell Communication and Cell Signaling

  1. contain GRB2 domains.

  2. are involved in autophosphorylation of the RTK.

  3. are phosphorylating the receptor and the docking protein.

  4. are adopting a different conformation (shape) to expand the pathways affected by ligand binding.

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TLS Online TPP Program

#Question id: 33329

#Unit 2. Cellular Organization

In gram-negative bacteria such as Escherichia coli, cross-links form between:
TLS Online TPP Program

#Question id: 12206

#Unit 7. System Physiology – Animal

Neonates that are kept in 100% oxygen incubators for several days become blind when they are removed from the incubator, a condition referred to as retrolental fibroplasia. What is the explanation for the loss of sight?
TLS Online TPP Program

#Question id: 3565

#Unit 8. Inheritance Biology

Mendel crossed yellow-seeded and green-seeded pea plants and then allowed the offspring to self-pollinate to produce an F2 generation. The results were as follows: 6,022 yellow and 2,001 green. Which of the following statements correctly describes the relationship of the allele for green seeds to the allele for yellow seeds?
TLS Online TPP Program

#Question id: 4418

#Unit 3. Fundamental Processes

Histones in repressed regions near telomeres and at the silent mating loci are hypoacetylated, confirmed by using
TLS Online TPP Program

#Question id: 17811

#Unit 7. System Physiology – Animal

Distress can lead to ______.