Microbial Genetics
Studies of similarities and differences among the genomes of multiple organisms is carried out in

comparative genomics
functional genomics
structural genomics
proteomics

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Microbial Genetics
Which of the following theory is supported by the genomic sequence of the obligate intracellular parasite Rickettsia prowazekii ?

Mitochondria have evolved from endosymbiotic bacteria
Parasites have a definite genomic sequence similar to viruses
Parasitic bacteria have very large genomes
All bacteria evolved from viruses

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Microbial Genetics
Why the bacterium Treponema pallidum is difficult to culture?

Because it is unable to use carbohydrates as an energy source
Because it requires extremely low temperature at which water freezes
Because it requires a great deal of water to reproduce
Because it lacks the genes needed for TCA cycle and oxidative phosphorylation

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