Essential Cell Biology (fifth Edition)
Essential Cell Biology (fifth Edition)
5th Edition
ISBN: 9780393680362
Author: ALBERTS, Bruce, Hopkin, Karen, Johnson -
Publisher: W. W. Norton & Company
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Chapter 18, Problem 21Q
Summary Introduction

To sketch and explain: A favored model that explains the mechanism of polar movement of chromosomes in which microtubules shorten, generate force, and  yet remain firmly attached to the kinetochore of the chromosome.

Concept introduction: The sister chromatids have centromere to which the kinetochore complexes are bound. Thekinetochore is a disc-shaped protein. Kinetochore complexes bind to the microtubule and move along them by depolymerizing them. The depolymerization involves release of energy that helps them to slide along a microtubule.

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