Each of the Following Provides Evidence That Kinetochore Microtubule Shortening

question 46

Multiple Choice

Each of the following provides evidence that kinetochore microtubule shortening is directly involved in anaphase A chromosome movement to a pole except

• A)Stabilization of microtubules with the drug paclitaxel stops chromosome movement to a pole.
• B)Treatment that accelerates microtubule depolymerization causes chromosomes to move toward the poles more quickly.
• C)Antibody inhibition of kinesin depolymerization of kinetochore microtubules interferes with chromosome movement to a pole.
• D)Laser bleaching of labeled kinetochore microtubules indicates they shorten at the kinetochore as the chromosome moves toward a pole.
• E)All of the above are evidence that kinetochore microtubule shortening is directly involved in anaphase A chromosome movement to a pole.

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Definitions:

General Adaptation Syndrome

A three-stage process (alarm, resistance, exhaustion) that describes the physiological changes the body goes through under stress.

Resistance Phase

The second stage of the general adaptation syndrome, where the body adapts to a stressor and attempts to return to homeostasis.

Historical Racism

Historical racism refers to the systemic racism that has been embedded in societal structures over time, affecting generations through discriminatory practices and beliefs.

Protective Factor

A characteristic or condition that decreases the likelihood of developing a disease or injury.