Cytoskeletal Components with a 7 Nm Diameter Are Discovered in the Cultured

question 165

Multiple Choice

Cytoskeletal components with a 7 nm diameter are discovered in the cultured cells of an animal.Which would be a good experiment to check your hypothesis about the identity of these cytoskeletal components?

• A) Expose the cells to a substance that binds myosin proteins, and see if the cell is still able to make the structures.
• B) Incubate the cells in a substance that will depolymerize actin, and observe whether the structure collapses.
• C) Inject a tubulin binding protein, and see whether the cell is able to maintain the structures.
• D) Add a dynein inhibitor, and see whether the structures disappear.
• E) Include a keratin digestion component in the culture, and confirm loss of the structure.

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Definitions:

Gradient Development

The process of forming a gradual change in concentration, temperature, or other qualities in a given direction.

Germ Layer

One of three primary layers in an early animal embryo.

Placenta

Organ formed during pregnancy; allows diffusion of material between maternal and embryonic bloods.

Bulbourethral Gland

Small glands near the base of the male urethra that produce a clear fluid that lubricates the urethra for spermatozoa to pass through.