Human DNA and nucleus,TEM

Numéro d’image : 11818371
Human DNA and nucleus,TEM
Human DNA and nucleus. Coloured transmission electron micrograph (TEM) of human DNA (deoxyribonucleic acid,strands) superimposed on a confocal light micrograph of a mammalian nucleus (bright blue and pink). The DNA seen here is in its uncondensed form and measures several metres in length. However,a mammalian cell nucleus,which holds a cell's DNA,only measures between 0. 02 and 0.01 millimetres in diameter. To fit into the nucleus the DNA is first coiled around proteins (called histones) to form a complex known as a nucleosome. The nucleosomes then further coil and condense to form chromatin,the DNA-protein complex that makes up chromosomes. Magnification: x20,000 when printed at 10 centimetres tall
Licence : Droits gérés
Crédit: Science Photo Library / Murti, Dr. Gopal
Taille de l’image : 2605 px × 3352 px
Model Release : Non requis
Property Release : Non requis
Restrictions : -

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