Griffith's experiment. Illustration of the experiment reported in 1928 by British bacteriologist Frederick Griffith (1879-1941),providing evidence that bacteria can transfer genetic information through a process called transformation. He infected mice with two types of pneumococcus bacteria. From left: Type II-R (rough,blue) did not kill the mice; type III-S (smooth,orange) did kill the mice; heat-killed smooth bacteria (crumpled,orange) did not kill the mice; the two non-fatal forms mixed together (rough and heat-killed smooth) killed the mice. Genetic transfer from dead to live bacteria changed the live ones to the fatal type. Labelled version: C028/8012 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Elam, Gunilla |
Bildgröße: | 3578 px × 2609 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |