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

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

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Microbial Genetics
Proteomics is

a branch of quantum physics dealing with proteins
the study of the entire collection of proteins expressed by an organism
the study of formation of lipo-protein in animals
the study of algal genomes

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

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
Because it is unable to use carbohydrates as an energy source

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