MCQOPTIONS
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MCQOPTIONS
This section includes 21 Mcqs, each offering curated multiple-choice questions to sharpen your Microbial Recombination and Gene Transfer knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Bacteria are capable of "sharing" genetic material that can be advantageous in certain environments. This type of gene transmission is an example of which of the following? |
| A. | Transduction |
| B. | Transformation |
| C. | Fission |
| D. | Conjugation |
| Answer» E. | |
| 2. |
Which type of bacterial genetic recombination involves the use of a viral vector? |
| A. | Transformation |
| B. | Assimilation |
| C. | |
| D. | D. |
| Answer» D. D. | |
| 3. |
What plasmid, usually in multiple copies in a prokaryote, is responsible for production of proteins to attack susceptible organisms? |
| A. | Col plasmids |
| B. | R plasmids |
| C. | Degradative plasmids |
| D. | Virulence plasmids |
| Answer» B. R plasmids | |
| 4. |
What type of genetic transfer was displayed in the Frederick Griffiith experiment? |
| A. | Transformation |
| B. | Conjugation |
| C. | Binary fission |
| D. | Transduction |
| Answer» B. Conjugation | |
| 5. |
What type of phages facilitate specialized transduction? |
| A. | Lytic phages |
| B. | None of these |
| C. | Retroviruses |
| D. | Lysogenic phages |
| Answer» E. | |
| 6. |
The transfer of genetic material between bacteria through cell-to-cell contact is called bacterial. |
| A. | Conjugation |
| B. | Transformation |
| C. | Transduction |
| D. | None |
| Answer» B. Transformation | |
| 7. |
Penicillin resistance in staphylococci is acquired due to |
| A. | conjugation |
| B. | mutation |
| C. | transformation |
| D. | transduction |
| Answer» E. | |
| 8. |
Transduction was discovered by |
| A. | Zinder and Lederberg |
| B. | Ivanovsky |
| C. | Griffith |
| D. | Avery et al |
| Answer» B. Ivanovsky | |
| 9. |
Bacterial sex factor is |
| A. | F-factor |
| B. | col-factor |
| C. | R-factor |
| D. | RNA |
| Answer» B. col-factor | |
| 10. |
hich of the following bacteriophages are responsible for specialised transduction? |
| A. | T4 phages |
| B. | Lysogenic phages |
| C. | Lytic phages |
| D. | Both (b) and (c) |
| Answer» C. Lytic phages | |
| 11. |
Which of the following methods of reproduction proved for the first time that DNA is genetic material? |
| A. | Binary fission |
| B. | Conjugation |
| C. | Transduction |
| D. | Transformation |
| Answer» E. | |
| 12. |
Mode of action of penicillin is by |
| A. | inhibiting RNA synthesis |
| B. | inhibiting cell wall formation |
| C. | destroying chromatin |
| D. | inhibiting spindle formation |
| Answer» C. destroying chromatin | |
| 13. |
Genetic recombination between bacterial cells is first demonstrated by |
| A. | Ochoa and Kornberg |
| B. | Har Gobind Khorana |
| C. | H. J. Muller |
| D. | Lederberg and Tatum |
| Answer» E. | |
| 14. |
Which of the following transport bacterial DNA to other bacteria via bacteriophages? |
| A. | Conjugation |
| B. | |
| C. | C. |
| D. | D. |
| Answer» C. C. | |
| 15. |
Which of the following statement(s) is/are true in regards to F+ x F- mating events? |
| 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 |
| Answer» C. No DNA is transferred because F- cells are unable to perform conjugation | |
| 16. |
Transfer of genetic material in bacteria through virus is termed as |
| A. | transduction |
| B. | recombination |
| C. | conjugation |
| D. | transformation |
| Answer» B. recombination | |
| 17. |
Transfer of genetic material from the donor to recipient bacterium through cell contact is termed as |
| A. | transduction |
| B. | recombination |
| C. | conjugation |
| D. | transformation |
| Answer» D. transformation | |
| 18. |
Binary fission in bacteria does not involve |
| A. | spindle formation |
| B. | DNA duplication |
| C. | Cytokinesis |
| D. | Cell elongation |
| Answer» B. DNA duplication | |
| 19. |
Common vegetative reproduction in bacteria is by |
| A. | conjugation |
| B. | budding |
| C. | oidia |
| D. | binary fission |
| Answer» E. | |
| 20. |
The expression of gene X (which has promoter Px) is to be monitored. A gene fusion construction for carrying this work will |
| A. | have Px but not the rest of the X coding region |
| B. | have the promoter of |
| C. | or some other reporter gene |
| D. | allow to monitor the expression of all genes with a promoter similar in sequence to Px |
| E. | give the same information as from a microarray |
| Answer» B. have the promoter of | |
| 21. |
Penicillin resistance in staphylococci is acquired due to |
| A. | conjugation |
| B. | mutation |
| C. | transformation |
| D. | transduction |
| Answer» E. | |