Becker's World of the Cell (9th Edition)
9th Edition
ISBN: 9780321934925
Author: Jeff Hardin, Gregory Paul Bertoni
Publisher: PEARSON
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Chapter 24, Problem 24.7PS
Role of Cyclin-Dependent Protein Kinases. Based on your understanding of the regulation of the eukaryotic cell cycle, how could you explain each of the following experimental observations?
- (a) When mitotic Cdk-cyclin is injected into cells that have just emerged from S phase, chromosome condensation and nuclear envelope breakdown occur immediately, rather than after the normal G2 delay of several hours.
- (b) When an abnormal, indestructible form of mitotic cyclin is introduced into cells, they enter into mitosis but cannot emerge from it and reenter G1 phase.
- (c) Mutations that inactivate the main protein phosphatase used to catalyze protein dephosphorylations cause a long delay in the reconstruction of the nuclear envelope that normally takes place at the end of mitosis.
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Chapter 24 Solutions
Becker's World of the Cell (9th Edition)
Ch. 24 - Prob. 1QCh. 24 - Which DNA sequences are more alike: a pair of...Ch. 24 - Suppose you treat rapidly dividing tissue culture...Ch. 24 - Cyclin D is part of the G1 Cdk-cyclin complex....Ch. 24 - Both EGF (a mitogen) and TGF (when acting as an...Ch. 24 - A knockout mouse has been produced using the...Ch. 24 - Cell Cycle Phases. Indicate whether each of the...Ch. 24 - QUANTITATIVE The Mitotic Index and the Cell Cycle....Ch. 24 - Chromosome Movement in Mitosis. It is possible to...Ch. 24 - Cytokinesis. Predict what will happen in each of...
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