The figure below shows the network connecting cities A, B, C, D, E and F. The arrows indicate permissible directions of travel. If Deepak from city A wants to visit city F, what is the probability he will pass through city C

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#Question id: 1563

#Section 2: General Biology

A nonfunctional CD4 protein on a helper T cell would result in the helper T cell being unable to ________.

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#Question id: 1564

#Section 2: General Biology

When antibodies bind antigens, the clumping of antigens results from ________.

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#Question id: 1565

#Section 2: General Biology

Which of the following are symptoms of inflammation that might appear in such art?

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#Question id: 1566

#Section 2: General Biology

Histamines trigger dilation of nearby blood vessels, and increase in their permeability. Which of the signs of inflammation are therefore associated with histamine release?

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#Question id: 1567

#Section 2: General Biology

Which of the following cell types are responsible for initiating a secondary immune response?

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#Question id: 1568

#Section 2: General Biology

which one of these is not a characteristics  of B-cell?