Microbial Recombination and Gene Transfer problems
- 1. The correct term for the transfer of genetic material between bacteria in direct physical contact is
Options- A. conjugation
- B. transformation
- C. replication
- D. transduction Discuss
Correct Answer: conjugation
- 2. Which of the following plamids do not possess information for self transfer to another cell?
Options- A. Cryptic plasmids
- B. Conjugative plasmids
- C. Non-conjugative plasmids
- D. None of these Discuss
Correct Answer: Non-conjugative plasmids
- 3. The main difference between a self-transmissible and a mobilizable plasmid is that the self-transmissible plasmid
Options- A. transfers both strands of the plasmid DNA
- B. carries genes encoding the mating apparatus
- C. transfers antibiotic resistance genes
- D. usually has a transposon inserted into it Discuss
Correct Answer: carries genes encoding the mating apparatus
- 4. Which of the following term describes the relationship between a virus and host where no new viral particles are produced and the viral genome is replicated along with host chromosome?
Options- A. Lysogeny
- B. Lysis
- C. Transformation
- D. Conjugation Discuss
Correct Answer: Lysogeny
- 5. What is term used for a bacterial cell that is able to take up naked DNA?
Options- A. Complementary
- B. Liable
- C. Competent
- D. Infected Discuss
Correct Answer: Competent
- 6. The chromosomal genes, possessing fertility factor is known as
Options- A. R factor
- B. F prime factor
- C. HFr
- D. F factor Discuss
Correct Answer: F prime factor
- 7. In lysogeny,
Options- A. a bacteriophage transfers bacterial DNA
- B. bacteria take up double stranded DNA from the environment
- C. DNA-degrading enzymes in the extracellular medium would stop the process
- D. a bacteriophage genome is integrated into the bacterial genome Discuss
Correct Answer: a bacteriophage genome is integrated into the bacterial genome
- 8. Which of the following transport bacterial DNA to other bacteria via bacteriophages?
Options- A. Conjugation
- B. Transduction
- C. Transformation
- D. Translation Discuss
Correct Answer: Transduction
- 9. What information can be generated by interrupted mating experiments?
Options- A. Levels of DNA homology
- B. Bacterial genome maps
- C. DNA nucleotide sequences
- D. Proteomics of the bacteria Discuss
Correct Answer: Bacterial genome maps
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