Microbiology - Microbial Genetics

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Exercise : Microbial Genetics - Section 1
  • Microbial Genetics - Section 1
1.
In the time since E. coli and Salmonella diverged evolutionarily
there has been little change in either genome
E. coli has acquired many genes via horizontal transfer
E, coli has lost approximately 50% of its genome
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.

2.
Which of the following theory is supported by the genomic sequence of the obligate intracellular parasite Rickettsia prowazekii ?
Parasitic bacteria have very large genomes
Parasites have a definite genomic sequence similar to viruses
Mitochondria have evolved from endosymbiotic bacteria
All bacteria evolved from viruses
Answer: Option
Explanation:
No answer description is available. Let's discuss.

3.
The physical nature of genomes is studied under
structural genomics
comparative genomics
proteo genomics
functional genomics
Answer: Option
Explanation:
No answer description is available. Let's discuss.

4.
The species of bacteria, which possesses 250 genes for lipid biosynthesis is
M. genitalium
M. tuberculosis
E. coli
H. influenzae
Answer: Option
Explanation:
No answer description is available. Let's discuss.

5.
Why the bacterium Treponema pallidum is difficult to culture?
Because it requires a great deal of water to reproduce
Because it is unable to use carbohydrates as an energy source
Because it lacks the genes needed for TCA cycle and oxidative phosphorylation
Because it requires extremely low temperature at which water freezes
Answer: Option
Explanation:
No answer description is available. Let's discuss.