A Small Zone of Fluorescent Microtubules in a Cell Is

question 99

Multiple Choice

A small zone of fluorescent microtubules in a cell is photobleached so that their fluorescent label gives off no light.Some time later fluorescence returns to the bleached zone in the cell.Which of the following is a possible explanation for the recovery of fluorescence in the region of the cell previously bleached?

• A)the dynamics of the microtubules turning over in that bleached zone of the cell
• B)the growth of new microtubules into the bleached zone
• C)movement of microtubules through the bleached zone
• D)all of these choices
• E)the dynamics of the microtubules turning over in that bleached zone of the cell and the growth of new microtubules into the bleached zone

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Definitions:

Primary Colors

The set of colors that can be combined to create a wide spectrum of colors but cannot be created by mixing other colors. Typically red, blue, and yellow in pigment or red, green, and blue in light.

Additive Colors

A color system in which colors are created by mixing various amounts of light colors, primarily red, green, and blue.

Oval Window

A membrane-covered opening that leads from the middle ear to the vestibule of the inner ear, where sound vibrations are transmitted.

Cochlea

A spiral-shaped, fluid-filled organ in the inner ear that is responsible for converting sound vibrations into nerve impulses that the brain can interpret as sound.