Electron micrograph of the 30-nm fiber.
DNAFTB Animation 29: Roger Kornberg explains his work with Aaron Klug on histones, which bind DNA to form chromatin.
Scanning electron micrograph of the head a normal Drosophila.
An electron micrograph of a mouse liver cell. Magnification approximately 12,000 times.
Scanning electron micrograph of the head a Drosophila mutant for the antennapedia gene.
This was one of the original photos that Roberts and his group used for analyzing their results.
Electron micrograph of the DNA and the protein scaffold left over from one chromosome (insert) with all the histone stripped out.
DNAFTB Problem 29: Test your understanding of chromosome packaging.
Describing the set up of the electron micrograph experiments.
Describing the early experimental evidence for "interrupted" RNA transcripts that went on to suggest the subsequent electron micrograph studies.