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Chapter 9 Nucleus and Chromosomes

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Outline

1. The nucleus: Nuclear envelope and NPC
         　A. Structure: Double-membrane nuclear envelope surrounds the nucleus
          　B. The nuclear envelope consists consists of two membranes by a perinuclear space.
          　C . Nuclear pore complex (NPC)
          　D. Molecules enter and exit the nucleus through nuclear pore complex
2. Eukaryotes package DNA in Chromatin and chromosomes
          　A. The complexity of eukaryotic genomes
          　B. DNA packaging
          　C. Nucleosomes are packed together to form chromatin fibers and chromosomes
          　D. Euchromatin and Heterochromatin
3. Chromosome number,size,and shape at metaphase are species specific
          　A. Main structures of chromosome
4. Nucleolus
          　A. Structure
          　B. Functions of nucleolus: Ribosomal Biogenesis

Copyright 2010, by the Contributing Authors. Cite/attribute Resource. . (2008, October 23). Retrieved September 03, 2010, from CORE OCW Web site: http://ocw.core.org.cn/CORE/biology/cell-biology/online-course-1/chapter-9. This work is licensed under a Creative Commons License. Creative Commons License