LuisWk10 - c.Randomly growing polar microtubules are...

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Bio D103: Cell Biology Bio. Department Tutoring Winter 08: Week 10 Lectures 24-25 3/12/08 Wed. 1-3:00 SH157 1. Wee1 is an inhibiting kinase for the cyclin-cdk complex. The phenotype for a mutant that lacks Wee1 activity will be: a. Small cells because of premature S-phase exit b. Small cells because of decreased G 2 c. Elongated cells because of increased G 2 d. Elongated cells because of increased G 1 2. Which of the following statements is true regarding how motor proteins organize the mitotic spindle during prophase? a.At least 7 different kinesins and 1 dynein are needed b.Dynein helps pull asters toward the cell cortex
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Unformatted text preview: c.Randomly growing polar microtubules are aligned via unusual end kinesin motors d.All of the above 3. During which stage of the cell cycle is the chromosome content of a mammalian liver cell 1 n ? a. G 1 b. S c. G 2 d. none of the above 4. If the spindle assembly checkpoint malfunctioned and the cell begins anaphase before microtubules attached to kinetochores on both sister chromatids, what is the result? 5. What is the role of p53 in mediating the cells cycle arrest in cells with DNA damage?...
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This note was uploaded on 05/28/2008 for the course BIO SCI D103 taught by Professor Suetterlin/macgregor during the Winter '08 term at UC Irvine.

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