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. |
Coliphages are single-stranded vectors. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Which of the following is not a filamentous coliphage vector? |
| A. | M13 |
| B. | Lambda |
| C. | F1 |
| D. | Fd |
| Answer» C. F1 | |
| 3. |
Hybrid vectors can replicate both in ________ and B. subtilis. |
| A. | Mammals |
| B. | Insects |
| C. | Plants |
| D. | E.coli |
| Answer» E. | |
| 4. |
Which of the following is a cryptic Bacillus plasmid? |
| A. | Pta1060 |
| B. | Pta1100 |
| C. | Pta 10 |
| D. | BSA |
| Answer» B. Pta1100 | |
| 5. |
Which of the following is greatly reduced in plasmid vectors post insertion of exogenous DNA? |
| A. | Size |
| B. | Stability |
| C. | Infection |
| D. | Efficiency |
| Answer» C. Infection | |
| 6. |
Vector PC194 carries ____ gene of PT127. |
| A. | TCR |
| B. | PCR |
| C. | CCR |
| D. | GCR |
| Answer» B. PCR | |
| 7. |
S. aureus plasmids carry ______ selectable markers. |
| A. | More than one |
| B. | One |
| C. | No |
| D. | Two |
| Answer» C. No | |
| 8. |
Plasmids from S. aureus transform into B. subtilis and express _____________ normally. |
| A. | Lactic acid |
| B. | Antibiotic resistance |
| C. | Antibiotics |
| D. | Crown gall |
| Answer» C. Antibiotics | |
| 9. |
Cloning vectors for low-GC bacteria are derived from ________ |
| A. | Plasmids |
| B. | Yeasts |
| C. | Plants |
| D. | Mammals |
| Answer» B. Yeasts | |
| 10. |
Bacillus subtilis is a _________ bacteria. |
| A. | Gram-negative |
| B. | Low-GC |
| C. | High-GC |
| D. | High-AT |
| Answer» C. High-GC | |
| 11. |
Which of the following is not a lactic acid producing bacteria? |
| A. | Streptococcus |
| B. | Lactococcus |
| C. | Lactobacillus |
| D. | Clostridium |
| Answer» E. | |
| 12. |
Streptomycetes are ______________ |
| A. | High GC content |
| B. | Low GC content |
| C. | Gram-negative bacteria |
| D. | Low AT content |
| Answer» B. Low GC content | |
| 13. |
There are no universal cloning vectors for use with all Gram-positive bacteria. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 14. |
In Gram-positive bacteria, there is a disparity in ___________ in the genomes. |
| A. | AT content |
| B. | GC content |
| C. | Structure |
| D. | Composition |
| Answer» C. Structure | |