Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 1714
TLS Online TPP Program

#Question id: 1739

Cross-linking of B-cell surface receptors:

#Unit 4. Cell Communication and Cell Signaling

  1. Is a characteristic feature of thymus-dependent antigens

  2. Lowers the intracellular Ca2+ concentration

  3. Rapidly phosphorylates the Ig-α and Ig-β chains of the surface Ig receptor

  4. Requires contiguity of two B-cell epitopes of different specificity on the same antigen molecule

More Questions
TLS Online TPP Program

#Question id: 2463

#Unit 2. Cellular Organization

 In the operational model for movement of myosin along an actin filament, the power stroke occurs during:
TLS Online TPP Program

#Question id: 2464

#Unit 2. Cellular Organization

What is the function of CapZ and tropomodulin in the sarcomere?
TLS Online TPP Program

#Question id: 2465

#Unit 2. Cellular Organization

In the budding yeast S. cerevisiae, which of the following is NOT transported into the bud by myosin V?
TLS Online TPP Program

#Question id: 2466

#Unit 2. Cellular Organization

Multinucleated cells may result from a defect in:
TLS Online TPP Program

#Question id: 2467

#Unit 2. Cellular Organization

Which of the following is NOT a function of myosin-powered movements?
TLS Online TPP Program

#Question id: 2468

#Unit 2. Cellular Organization

Membrane extension during cell locomotion is driven by: