Life: The Science of Biology 11th Edition

Published by W. H. Freeman
ISBN 10: 1-31901-016-4
ISBN 13: 978-1-31901-016-4

Chapter 11 - The Cell Cycle and Cell Division - 11.3 - Eukayotic Cells Divide by Mitosis - 11.3 Recap - Learning Outcomes - Page 224: 2

Answer

Certain proteins called histones are responsible for compacting chromosomal DNA into the microscopic nucleus, creating a DNA-protein complex called chromatin where the DNA is efficiently "coiled" to conserve space. These chromatids are held together by electrostatic forces provided by the histones. Each nucleosome consists of 8 histones to form long, slender chromosomes.

Work Step by Step

Certain proteins called histones are responsible for compacting chromosomal DNA into the microscopic nucleus, creating a DNA-protein complex called chromatin where the DNA is efficiently "coiled" to conserve space. These chromatids are held together by electrostatic forces provided by the histones. Each nucleosome consists of 8 histones to form long, slender chromosomes.
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