Combining cellular and plasmid DNA. Animation showing the process by which cellular and plasmid DNA (deoxyribonucleic acid) can be combined. Plasmid DNA is a circular form usually found in bacteria. The first image shows part of a straight strand of cellular DNA being acted upon by a restriction endonuclease (blue arrows). This enzyme cuts out fragments of single-strand DNA from the cellular and plasmid forms in such a way that the two fragments have complementary components and can combine as shown in the rest of the animation. Here, the final form is a plasmid DNA containing a fragment of cell DNA. The letters represent the nucleotide bases: guanine (G), adenine (A), thymine (T), and cytosine (C). For this animation with labels, see K004/2052. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Biocosmos / Francis Leroy & Valentin Legrand |
Modell-Rechte: | nicht erforderlich |
Länge: | 27 Sekunden |
Seitenverhältnis: | 16:9 |
Restrictions: | - |