They were discovered independently by the Frederick Twort in 1915 and Felix D'Herelle two years later. The first electron micrographs of them, obtained in 1942, showed a tadpole-like shape, five years after the father of their research, George Eliava, was killed in a purge. 
They were discovered independently by the Frederick Twort in 1915 and Felix D'Herelle two years later. The first electron micrographs of them, obtained in 1942, showed a tadpole-like shape, five years after the father of their research, George Eliava, was killed in a purge. The tailed ones are known as the dsDNA ones because their tails are molecules of linear double- stranded DNA, and the most potent of them is believed to be the T4 class. FTP, identify these things that were famously used in the Hershey-Chase experiment and which are defined as viruses that can infect bacteria.
They were discovered independently by the Frederick Twort in 1915 and Felix D'Herelle two years later.
bacterio{phage}