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28 Sep 2019
You have isolated a strain of temperature-sensitive mutant yeast that divides normally at 25°C. However, at 37°C, the mutant pauses in the cell cycle right before M phase. These mutant yeast cells are NOT defective in MCdk. For each one of the following conditions, state whether or not it could be responsible for the behavior of this strain of yeast (3 points). Explain your reasoning for each choice.
A. Inactivation of an enzyme that degrades M-Cyclin.
B. Inactivation of the Wee-1 kinase.
C. Inactivation of the Cdc25 phosphatase
You have isolated a strain of temperature-sensitive mutant yeast that divides normally at 25°C. However, at 37°C, the mutant pauses in the cell cycle right before M phase. These mutant yeast cells are NOT defective in MCdk. For each one of the following conditions, state whether or not it could be responsible for the behavior of this strain of yeast (3 points). Explain your reasoning for each choice.
A. Inactivation of an enzyme that degrades M-Cyclin.
B. Inactivation of the Wee-1 kinase.
C. Inactivation of the Cdc25 phosphatase
Patrina SchowalterLv2
28 Sep 2019
