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Multiple Choice
How does the drug Taxol inhibit cell division?
A
By disrupting the formation of the mitotic spindle
B
By inhibiting DNA replication
C
By blocking the synthesis of cyclin proteins
D
By stabilizing microtubules and preventing their depolymerization
Verified step by step guidance
1
Understand the role of microtubules in cell division: Microtubules are essential components of the mitotic spindle, which is responsible for separating chromosomes during cell division.
Learn about the dynamic nature of microtubules: Microtubules undergo cycles of polymerization and depolymerization, which are crucial for their function in the mitotic spindle.
Explore how Taxol affects microtubules: Taxol stabilizes microtubules by binding to them and preventing their depolymerization, which disrupts the normal function of the mitotic spindle.
Consider the impact on cell division: By stabilizing microtubules, Taxol inhibits the ability of the mitotic spindle to function properly, thereby blocking cell division.
Connect the mechanism to therapeutic use: Taxol's ability to inhibit cell division is utilized in cancer treatment, where it helps prevent the proliferation of cancer cells.