Mammals have Toll-like receptors (TLRs) that act in a manner similar to those of insects. While not specific to a particular pathogen, a TLR can recognize a kind of macromolecule that is absent from vertebrates but present in/on certain groups of pathogens. Which of the following is most likely to be recognized by a particular TLR that defends against some viruses?

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#Question id: 2411

#Unit 2. Cellular Organization

Three major groups of filament systems comprising the cytoskeleton are all composed of polymers of assembled subunits, which vary in thickness when assembled.  Which is the correct order, from smallest to largest, of the filament systems?

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#Question id: 2412

#Unit 2. Cellular Organization

Actin-binding proteins that generate actin filament bundles:

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#Question id: 2413

#Unit 2. Cellular Organization

 Decoration of actin filaments with myosin S1 is commonly used to:

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#Question id: 2414

#Unit 2. Cellular Organization

Many actin cross-linking proteins contain:

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#Question id: 2415

#Unit 2. Cellular Organization

Within an actin filament, each actin subunit is surrounded by how many neighboring actin subunits?

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#Question id: 2416

#Unit 2. Cellular Organization

At ATP-G-actin concentrations that are intermediate between the Cc for the (+) end and the Cc for the (–) end,_____ will be observed. The Cc needed for elongation at the (+) end is _____ than that at the (–) end of actin microfilaments.