Discussion
Home ‣ Microbiology ‣ Microbial Recombination and Gene Transfer Comments
- Question
A microarray differs from a gene fusion in that, it
Options- A. carries DNA segments from many different genes
- B. is not constructed by cloning
- C. gives direct measurement of mRNA level
- D. all of the above
- Correct Answer
- all of the above
- 1. The term used for acquisition of naked DNA from its environment and its incorporation in their genome by a bacterium is
Options- A. transformation
- B. lysogenic conversion
- C. conjugation
- D. transduction Discuss
- 2. The expression of gene X (which has promoter Px) is to be monitored. A gene fusion construction for carrying this work will
Options- A. have Px but not the rest of the X coding region
- B. have the promoter of lacZ or some other reporter gene
- C. allow to monitor the expression of all genes with a promoter similar in sequence to Px
- D. give the same information as from a microarray Discuss
- 3. Which of the following is used by microbial genetisists as a tool?
Options- A. Bacteriophage
- B. Plasmids
- C. Transposable elements
- D. All of these Discuss
- 4. Which of the following type of recombination does not require homologous sequences and is important for the integration of viral genomes into bacterial chromosomes?
Options- A. Mutagenic recombimation
- B. Site-specific recombination
- C. Replicative recombination
- D. General recombination Discuss
- 5. Negative regulation of protein synthesis is accomplished by
Options- A. allosteric inhibition
- B. the binding of RNA polymerase to the promoter
- C. the binding of a repressor to the DNA
- D. the binding of a repressor to the RNA polymerase Discuss
- 6. Recombination of virus genomes occurs
Options- A. by transduction
- B. by transription
- C. simultaneous infection of a host cell by two viruses with homologous chromosomes
- D. by transformation Discuss
- 7. The plasmids can be eliminated from a cell by the process known as
Options- A. curing
- B. breaking
- C. fixing
- D. expulsion Discuss
- 8. R factors involved in plant-microbe interactions are
Options- A. plant proteins
- B. bacterial proteins
- C. essential for transfer of DNA to plant cells
- D. also called opines Discuss
- 9. Which of the following statement(s) is/are true in regards to F+ x F- mating events?
Options- A. DNA is transferred from F- to F+ cells
- B. DNA is transferred from F+ to F- cells
- C. No DNA is transferred because F- cells are unable to perform conjugation
- D. No DNA is transferred because F+ cells are unable to perform conjugation Discuss
- 10. Penicillin resistance in staphylococci is acquired due to
Options- A. conjugation
- B. mutation
- C. transformation
- D. transduction Discuss
Microbial Recombination and Gene Transfer problems
Search Results
Correct Answer: transformation
Correct Answer: have Px but not the rest of the X coding region
Correct Answer: All of these
Correct Answer: Site-specific recombination
Correct Answer: the binding of a repressor to the DNA
Correct Answer: simultaneous infection of a host cell by two viruses with homologous chromosomes
Correct Answer: curing
Correct Answer: plant proteins
Correct Answer: DNA is transferred from F+ to F- cells
Correct Answer: transduction
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