pt. 1. Nucleosome structure I : crystallographic analysis -- Nucelosome structure II : conformational studies -- Nucleosome structure III : the core -- Nucleosome structure IV : H1 interactions -- Chromosome coiling and assembly -- SImple systems -- Transcription I : primary products. and pt. 2. Transcription II : regulated systems -- Transcriptionally active chromatin -- Cloned eukaryotic genes I -- Cloned eukaryotic genes II -- Histone genes -- Repeated DNA sequences -- Summary.