MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Vector Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
When was bacteriophage discovered? |
| A. | 1915-1917 |
| B. | 1980 |
| C. | 1819-1821 |
| D. | 2000 |
| Answer» B. 1980 | |
| 2. |
What is the role of N and Q genes? |
| A. | Positive regulation |
| B. | Negative regulation |
| C. | Transcription initiation |
| D. | Transcription termination |
| Answer» B. Negative regulation | |
| 3. |
The cI gene is of what type? |
| A. | Inducer |
| B. | Promoter |
| C. | Repressor |
| D. | Silent gene |
| Answer» D. Silent gene | |
| 4. |
What is the function of late gene regulation? |
| A. | Packaging DNA |
| B. | Host lysis |
| C. | Host infection |
| D. | Replication |
| Answer» B. Host lysis | |
| 5. |
THE_CI_GENE_IS_OF_WHAT_TYPE??$ |
| A. | Inducer |
| B. | Promoter |
| C. | Repressor |
| D. | Silent gene |
| Answer» D. Silent gene | |
| 6. |
When was bacteriophage discovered?$ |
| A. | 1915-1917 |
| B. | 1980 |
| C. | 1819-1821 |
| D. | 2000 |
| Answer» B. 1980 | |
| 7. |
What is the role of N and Q genes?$ |
| A. | Positive regulation |
| B. | Negative regulation |
| C. | Transcription initiation |
| D. | Transcription termination |
| Answer» B. Negative regulation | |
| 8. |
What is the function of early gene regulation? |
| A. | Replication |
| B. | Recombination |
| C. | Lytic cycle |
| D. | Cohesive site formation |
| Answer» D. Cohesive site formation | |
| 9. |
What is the role of phage cI gene? |
| A. | Host lysis |
| B. | Dormancy and immunity |
| C. | Gene regulation |
| D. | Temperature regulation |
| Answer» C. Gene regulation | |
| 10. |
Which region of the phage genome is not essential for growth? |
| A. | Between N and Q genes |
| B. | Cohesive sites |
| C. | Recombination and lysogenization |
| D. | Host lysis |
| Answer» D. Host lysis | |
| 11. |
What form does the phage DNA take when it is injected into the host? |
| A. | Linear |
| B. | Circular |
| C. | Double helical |
| D. | Supercoiled |
| Answer» C. Double helical | |
| 12. |
Who determined the sequence of Lambda phage? |
| A. | Sanger |
| B. | Maxam Gilbert |
| C. | Ramachandran |
| D. | John Williams |
| Answer» B. Maxam Gilbert | |
| 13. |
What is the confirmation of lambda phage DNA when it is isolated from the phage particle? |
| A. | Supercoiled |
| B. | Open circular |
| C. | Linear |
| D. | Linear duplex |
| Answer» C. Linear | |
| 14. |
To which organism does bacteriophage lambda belong? |
| A. | Pseudomonas |
| B. | Bacillus subtilis |
| C. | Escherichia coli |
| D. | Saccharomyces cerevisiae |
| Answer» D. Saccharomyces cerevisiae | |