DNA molecules,illustration

Numéro d’image : 12896606
DNA molecules,illustration
Computer illustration of DNA (deoxyribonucleic acid) molecules. DNA is composed of two strands twisted into a double helix. Each strand consists of a sugar-phosphate backbone attached to nucleotide bases. There are four bases: adenine (A),cytosine (C),guanine (G),and thymine (T),which are joined together by hydrogen bonds (yellow). DNA contains sections called genes that encode the body's genetic information. Here there are two different DNA molecules that spiral in opposite directions (mirror images of each other). The most common form of DNA found in nature,B-DNA,is a right-handed helix (at right).
Licence : Droits gérés
Crédit: Science Photo Library / Kightley, Russell
Taille de l’image : 5912 px × 5912 px
Model Release : Non requis
Property Release : Non requis
Restrictions :
  • This image may not be used in educational posters

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