MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Microbiology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In which of the following phage prophage exists as a circular form? |
| A. | Phage lambda type |
| B. | Phage P1 type |
| C. | Phage T2 type |
| D. | Phage T1 type |
| Answer» C. Phage T2 type | |
| 2. |
cro gene is an example of an immunity repressor. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
repressor protein makes the cell resistant to lysis. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
IN_WHICH_OF_THE_FOLLOWING_PHAGE_PROPHAGE_EXISTS_AS_A_CIRCULAR_FORM??$ |
| A. | Phage lambda type |
| B. | Phage P1 type |
| C. | Phage T2 type |
| D. | Phage T1 type |
| Answer» C. Phage T2 type | |
| 5. |
The protein integrase is encoded by which of the following gene? |
| A. | gal gene |
| B. | lambda gene |
| C. | bio gene |
| D. | cro gene |
| Answer» C. bio gene | |
| 6. |
Which of the following phage do not cause lysogeny? |
| A. | T2 |
| B. | T1 |
| C. | lambda |
| D. | P1 |
| Answer» B. T1 | |
| 7. |
Which of the following gene codes for an enzyme which directs the insertion of the phage DNA into the bacterial chromosome? |
| A. | recA gene |
| B. | cro gene |
| C. | int gene |
| D. | gal gene |
| Answer» D. gal gene | |
| 8. |
cro gene is an example of immunity repressor. |
| A. | True |
| B. | False |
| Answer» C. | |
| 9. |
Which of the following is the characteristic of repressor protein? |
| A. | basic protein |
| B. | acidic protein |
| C. | basic protein,molecular weight of 26000 |
| D. | acidic protein,molecular weight of 26000 |
| Answer» E. | |
| 10. |
epressor protein makes the cell resistant to lysis. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 11. |
In which of the following method, the viral particles are transmitted through lysis of cell? |
| A. | Lytic cycle |
| B. | Lysogeny |
| C. | Replication |
| D. | Translation |
| Answer» B. Lysogeny | |
| 12. |
What does a viral DNA becomes after being associated with the bacterial chromosome? |
| A. | gene |
| B. | prophage |
| C. | plasmid |
| D. | plaque |
| Answer» C. plasmid | |