Human chromosomes. Coloured scanning electron micrograph (SEM) of a group of human chromosomes. These structures occur in the nucleus of every cell in the body,carrying genetic information in the form of DNA (deoxyribonucleic acid),arranged in discrete segments known as genes. Apart from the sex cells,every human cell contains 46 chromosomes,23 inherited from the father and 23 from the mother. The chromosomes shown here have replicated themselves during cell division and so consist of two identical strands (chromatids) linked at their centre by a structure known as a centromere. Magnification unknown | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Power And Syred |
Taille de l’image : | 3500 px × 2426 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |