Q notes Biology
Chromosomes, Chromatin, Euchromatin, Heterochromatin
Chromosomes o Sections of DNA that aren’t in use are wrapped tightly around globular proteins called histones. o Eight histones wrapped in DNA form a nucleosome. o Nucleosomes, in turn, wrap into coils called solenoids, which wrap into supercoils. o The entire DNA/protein complex (including a small amount of RNA)