Illustration of similar or identical heads engraved with the letters of the DNA (deoxyribonucleic acid) alphabet (taken from a small section of human DNA). | |
Lizenzart: | Lizenzfrei |
Credit: | Science Photo Library / Brook, Robert |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |