Microbial Genetics
Which of the following is the study of the molecular organization of genomes, their information content and the gene products they encode?

Bioinformatics
Ergonomics
Genomics
Genetics

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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 lacks the genes needed for TCA cycle and oxidative phosphorylation
Because it requires a great deal of water to reproduce

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

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

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