51.4 MB (7.3 MB compressed)
4240 x 4240 pixels
35.8 x 35.8 cm ⏐ 14.1 x 14.1 in (300dpi)
KALLISTA IMAGES / CUSTOM MEDICAL STOCK PHOTO / SCIENCE PHOTO LIBRARY KALLISTA IMAGES / CUSTOM MEDICAL STOCK PHOTO / SCIENCE PHOTO LIBRARY
Nucleosomal DNA, molecular model. A nucleosome is a subunit of chromatin, the substance that forms chromosomes. It consists of a short length of DNA (deoxyribonucleic acid, pink and yellow helix) wrapped around a core of eight histone proteins (not shown). The structure of the nucleosome allows large quantities of DNA, the genetic material, to be packaged into a cell's nucleus. This DNA fragment is 146 base pairs long.
Model release not required. Property release not required.