Human chromosomes and nucleus,coloured scanning electron micrograph (SEM). Chromosomes are a packaged form of the genetic material DNA (deoxyribonucleic acid). The DNA normally exists in a non-condensed form in the cell nucleus (upper right). It condenses into chromosomes (centre and lower left) during cell replication. In humans,there are 46 chromosomes,consisting of 23 chromosome pairs. Magnification: x4350 when printed at 10 centimetres across | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Power And Syred |
Taille de l’image : | 4800 px × 4800 px |
Model Release : | Non requis |
Property Release : | Non requis |
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