2. Polytene Chromosomes of D. melanogaster

3. Electron Micrograph of a Single Chromatid of a Mitotic Chromosome

4. Electron Micrographs of Chromatin Strands Before and After Treatment

5. Micrococcal Nuclease Digestion of Chromatin

6. Sedimentation of Nucleosomes

7. Properties of Histones

8. Histones Forming the Nucleosome

9. Formation of Nucleosomes

10. Two Models for Packing Nucleosomes into 30nm Fiber

11. Hypothetical Model of Packaging DNA into Chromosomes

12. Histone Acetylation and DEACETYLATION

13. Histone Acetylation and Histone Structure

15. Number of Nucleotide Pairs Per Haploid Genome of Different Organisms

16. Integration: Renaturation of DNA is a Second Order Reaction

17. Reassociation Kinetics of Different DNAs

18. Reassociation Kinetics of Eukaryotic DNA

21. Sequence of Telomeric Ends of Different Organisms