Chromatin condensation,diagram. This sequence,from right to left,shows the stages by which a long strand of DNA (deoxyribonucleic acid,far right) is combined with various proteins to form chromatin,and is then coiled and compacted to form a chromosome (far left). The intermediate stages include histone cores (blue,centre right) that form 'beads on a string' and 'fibre' structures. Further scaffold proteins help coil the fibre (centre left). This compaction process is required to fit DNA strands (typically 2 metres in length) inside cell nuclei (less than 0.1 millimetres across). The scale in nanometres (nm) is across top | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Art for Science |
Bildgröße: | 7474 px × 2340 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |