Microbial Genetics problems
- 1. The word, used for the small solid supports onto which are spotted hundreds of thousands of tiny drops of DNA that can be used to screen gene expression, is
Options- A. southern blot
- B. cloning library
- C. DNA microarrays
- D. northern blot Discuss
Correct Answer: DNA microarrays
- 2. The species of bacteria, which possesses 250 genes for lipid biosynthesis is
Options- A. M. genitalium
- B. M. tuberculosis
- C. E. coli
- D. H. influenzae Discuss
Correct Answer: M. tuberculosis
- 3. In the time since E. coli and Salmonella diverged evolutionarily
Options- A. there has been little change in either genome
- B. E. coli has acquired many genes via horizontal transfer
- C. E, coli has lost approximately 50% of its genome
- D. none of these Discuss
Correct Answer: E, coli has lost approximately 50% of its genome
- 4. What is the range of minimum set of genes required for life?
Options- A. 50-100 genes
- B. 250-350 genes
- C. 1000-1500 genes
- D. 1500-2000 genes Discuss
Correct Answer: 250-350 genes
- 5. Which of the following theory is supported by the genomic sequence of the obligate intracellular parasite Rickettsia prowazekii?
Options- A. Parasitic bacteria have very large genomes
- B. Parasites have a definite genomic sequence similar to viruses
- C. Mitochondria have evolved from endosymbiotic bacteria
- D. All bacteria evolved from viruses Discuss
Correct Answer: Mitochondria have evolved from endosymbiotic bacteria
- 6. Which type of genomics studies the transcripts and proteins expressed by a genome?
Options- A. Comparative genomics
- B. Structural genomics
- C. Proteo genomics
- D. Functional genomics Discuss
Correct Answer: Functional genomics
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