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It depends on the strain, but a lot of them are antibiotic resistant and have long latent stages. STIs are typically latent for a long time because transmission is relatively infrequent. The latency makes them hard to defeat because the immune system can't detect the disease until its too late. ...


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The catalytic domain is roughly referring to the same part of the protein as an active site and may be used interchangeably in some circumstances: See here, where "catalytic domain" redirects to "active site." There is, however, a difference: From a free online medical dictionary: active site: the place on the surface of an enzyme where its ...


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Bacteria effectively clone themselves so theoretically all clones are identical. However like every organism they're subject to Darwinian evolution so there's always a chance a random mutation happens. Since bacteria usually reproduce fast the rate of these mutations can happen fast resulting in the strain evolving to a (slightly) different strain.


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In theory they're clones, but depending on the age of the strain(some strains are surprisingly old: ~40 years) there's variation inside strains. The reverse is also true. Bacteria from a single species are isolated twice and named different things by different labs and the mistake can take years to even find, much less correct.


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I live in St. Louis, MO and get this in my bathtub over time, but not in my other sinks. I actually think @Christiaan is correct here, but with a few additional observations: I don't think it's bacteria. When dry, it's not slimy, nor does it grow back quickly when wiped away. It feels much more like a mineral deposit. It was no longer pink when using a ...


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While I believe that it is possible to keep a bacterial culture viable while frozen in glycerol stock at around -20 °C, as attested to by WYSIWYG, it is important to note that your "typical household freezer" may not be suitable for such a purpose. This is because household freezers usually have an "auto-defrost" function. This makes it temporarily thaw ...



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