GILLES / SCIENCE PHOTO LIBRARY GILLES / SCIENCE PHOTO LIBRARY
BACTERIOPHAGE Bacteriophage. A bacteriophage is constituted of a proteic envelope (called capsid), containing its nucleic acid (DNA or RNA), and a tail. The tail includes a collar (covered with contractile proteins for the most elaborated bacteriophages, such as the T2 and T4 phages) and ending by tail fibers enabling it to attach to the bacteries it infects.
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