Transmission electron micrograph (TEM) of a plasmid (strand in blue). The area (in purple) at top left is where the DNA is starting to replicate. Plasmids are symbiotic pieces of DNA (deoxyribonucleic acid) that occur in bacteria and yeast. They are separate from the main chromosome,replicate independently,and can be transferred from one cell to another carrying genes with them | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Biology Pics |
Taille de l’image : | 3697 px × 2523 px |
Model Release : | Non requis |
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