A-DNA molecule. Computer model showing the A structure of a DNA (deoxyribonucleic acid) molecule. 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,cytosine,guanine and thymine. The bases are joined together by hydrogen bonds. The A form is one of the many possible structures of the DNA double helix. It is right-handed,similar to the more common B-DNA,but with a shorter more compact helical structure | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Laguna Design |
Bildgröße: | 4827 px × 3620 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |