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Journey to the Invisible World

... inhabitants Escherichia coli and Salmonella typhimurium in contrast to the genus of soil-dwelling bacilli that live at large. As for the microorganisms’ genome, its size is strictly limited and information density is remarkably high: 90—95 % of bacteria’s genome is coded by proteins or stable RNAs. Apart from this, the abilities microorganisms exhibit in exchanging genetic material (the so-called lateral transfer) are overwhelmingly greater: there are no genetic barriers between species or between kingdoms....

Modified: 25.08.2007
microorganisms , geysers , hot springs , bacteria , genome , evolution , origin of life
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Transgenic Relatives

... gradual mutation – this would have been too long an evolutionary process. This is a pulsed phenomenon related to the fact that genes can be transferred from one organism to another, bringing in fundamentally new characteristics The first complete bacterial genome was decoded only in 1995. Since then, the number of deciphered genomes has been increasing rapidly. Today, comparative analysis of genomes opens up a real possibility of revising our views on the origin and evolution of species. The basic elements ...

Modified: 30.09.2004
genome , DNA , gene transfer , genetic information , human , bacteria , evolution
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