Dystroglycan is a large glycoprotein that binds to dystrophin in muscle cells.  It is also present in other cells and can also bind to:

a.  laminin.

b.  the virus that causes Lassa fever.

c.  the bacterium that causes leprosy.

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#Question id: 1292

#4. Cell Communication and Cell Signaling

Heparan sulfate, an example of a(n) _____________, aids in the activation of ____________.

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#Question id: 1293

#4. Cell Communication and Cell Signaling

NCAMs, a group of cell-adhesion proteins belonging to the Ig superfamily. Which of the following is not a property of NCAM?

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#Question id: 1295

#4. Cell Communication and Cell Signaling

What signal is released by endothelial cells to recruit circulating leukocytes?

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#Question id: 1296

#4. Cell Communication and Cell Signaling

People with a defect in the synthesis of the integrin β2 subunit exhibit reduced:

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#Question id: 1297

#4. Cell Communication and Cell Signaling

What effect might an injection of RGD peptide have on tumor cells moving through the blood/lymph system?

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#Question id: 1389

#4. Cell Communication and Cell Signaling

 Why has C. elegans proven to be a useful model for understanding apoptosis?