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This image is an anaglyph in which a stereo image pair is combined into a single image using colour to separate the two views. To see the 3D stereo effect, you will need to use red green colour filter glasses (red for your left eye and green for your right eye). Such glasses can be obtained from your optometrist or specialty supplier. It is worth obtaining high quality anaglyphic glasses to achieve the best possible sense of depth. Cheap filters can often be found in novelty 3-D books. SEE HOW ANAGLYPHS ARE MADE.
P22 Bacteriophage are ds DNA viruses (family Podoviridae) that attack salmonella bacteria. They are encased in an icosahedral protein capsid which contains the coiled double stranded DNA genome (shown here as concentric reddish shells just visible through the translucent sepia capsid). From one vertex sprouts a hypodermic like assembly that can penetrate bacteria and inject the viral genome. This tail also acts as a plug to keep the genome inside. With thanks to Ed Rybicki.Useful links: