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Home ‣ Microbiology ‣ Microbial Recombination and Gene Transfer Comments
- Question
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
- Correct Answer
- transformation
- 1. 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
- 2. 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
- 3. 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
- 4. 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
- 5. Which of the following modified amino acid is used at the starting of most prokaryotic proteins?
Options- A. N-formylserine
- B. N-formylmethionine
- C. N-formylleucine
- D. N-formylalanine Discuss
- 6. 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 Discuss
- 7. 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
- 8. The plasmids can be eliminated from a cell by the process known as
Options- A. curing
- B. breaking
- C. fixing
- D. expulsion Discuss
- 9. 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
- 10. 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
Microbial Recombination and Gene Transfer problems
Search Results
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: N-formylmethionine
Correct Answer: all of the above
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
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