"Mini-Factories" To Make Medicine Inside the Body

I mean how a cell (like bacteria) have a bit of DNA, mechanism to transcribe that to RNA and use rhibosomes to translate that into a protein. This thing does similar stuff except it isn't designed to replicate itself. Hmm, I don't have access to the original though, what does it use for energy to do all of this? (Since a cell might use a mitochondria to do cellular respiration. Ok, a bacteria doesn't have those but it can do something similar.)

Source: http://rss.slashdot.org/~r/Slashdot/slashdotScience/~3/iflYn7Qf2cU/mini-factories-to-make-medicine-inside-the-body

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