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T2 bacteriophage, computer model
Computer model of a T2 bacteriophage, a virus that infects and kills Escherichia coli. T2 bacteriophages consist of a large DNA-containing head and a tail composed of a central sheath with several fibres. The fibres attach to the host cell surface, and the phage DNA is injected into the cell through the sheath. It instructs the host to build copies of the phage (progeny). Destroying the host's DNA releases nucleotide building blocks, from which phage DNA is synthesised. It is then packaged in the progeny, which are released when the host bursts., by Dr. Victor Padilla-Sanchez, PhD / Washington Metropolitan University/SCIENCE PHOTO LIBRARY
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