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T. G. A. Histone octomer. C. G C. T A. Histone proteins. G C. C G. T A. A T. A T. C G. 2 nm. G C. T A. Packaging DNA. B DNA Helix. Histone proteins. 2 nm. Packaging DNA. T. G. A. Histone octomer. C. G C. T A. G C. C G. T A. A T. A T. C G. B DNA Helix. G C.
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T G A Histone octomer C GC TA Histone proteins GC CG TA AT AT CG 2 nm GC TA Packaging DNA B DNA Helix
Histone proteins 2 nm Packaging DNA T G A Histone octomer C GC TA GC CG TA AT AT CG B DNA Helix GC TA
11 nm Histone proteins Nucleosome 2 nm Packaging DNA T G A Histone octomer C GC TA GC CG TA AT AT CG B DNA Helix GC TA
GC CG TA AT AT CG GC TA Packaging DNA
GC CG TA AT AT CG GC TA Packaging DNA
11 nm GC CG TA AT 30 nm 200 nm AT CG GC TA Protein scaffold Packaging DNA “Beads on a string” Looped Domains Tight helical fiber
11 nm Nucleosomes 30 nm 700 nm 200 nm T Looped Domains Tight helical fiber G C A 2 nm Protein scaffold B DNA Helix Packaging DNA Metaphase Chromosome
A packaged chromosome Chromatid Identical chromatid Replication Anaphase Chromosomes, Chromatids and Centromeres Chromosome arm Two identical chromosomes Centromere Chromosome arm
Histone proteins Packaging DNA T G A Histone octomer C G C TA G C C G T A A T A T C G B DNA Helix G C T A
GC CG TA AT AT CG GC TA Protein scaffold “Beads on a string” Looped Domains Tight helical fiber
Nucleosomes T Looped Domains Tight helical fiber G C A Protein scaffold B DNA Helix Metaphase Chromosome