Microbial Genetics
Why Deinococcus radiodurans is able to survive massive exposure to radiation?

Because it produces a thick shell which acts as a shield from the radiation
Because it has many copies of genes encoding DNA repair
Because it has unique DNA repair mechanisms
Because its cellwall contains radioactive elements

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Microbial Genetics
Proteomics is

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

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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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