MCQOPTIONS
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MCQOPTIONS
This section includes 15 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. |
What happens if an essential gene is replaced in a viral vector? |
| A. | tHelper dependent |
| B. | tHelper independent |
| C. | tNon-function |
| D. | tLoss of transfection ability |
| Answer» B. tHelper independent | |
| 2. |
Helper-independent vectors can _____________ |
| A. | tNot Propagate |
| B. | tPropagate dependently |
| C. | tPropagate independently |
| D. | tTransduce the cell |
| Answer» D. tTransduce the cell | |
| 3. |
Virus particles have a natural ability of ___________ |
| A. | tAdsorbing on the cell surface |
| B. | tProliferation |
| C. | tInducing tumor |
| D. | tInducing apoptosis |
| Answer» B. tProliferation | |
| 4. |
Apart from the introduction of DNA into cultured cells, bacteria mediated gene transfer has also been used for ________ |
| A. | tRecombinant protein production |
| B. | tTransgenic animal |
| C. | tIn vivo gene transfer |
| D. | tIn vitro gene transfer |
| Answer» D. tIn vitro gene transfer | |
| 5. |
Attenuation of Listeria Monocytogenes can be achieved by ___________ |
| A. | tAuxotrophic strains |
| B. | tAutolysis |
| C. | tGene knockout |
| D. | tMutation |
| Answer» C. tGene knockout | |
| 6. |
Inducible autolysis is a technique for attenuation. |
| A. | tTrue |
| B. | tFalse |
| Answer» B. tFalse | |
| 7. |
AroA mutants are unable to synthesize _____________ |
| A. | tAmino acids |
| B. | tHomeotic genes |
| C. | tVitamins |
| D. | tAromatic compounds |
| Answer» E. | |
| 8. |
Which of the following is a technique of bacterial attenuation? |
| A. | tAuxotrophic mutants |
| B. | tRemoval of cell wall |
| C. | tProtoplast fusion |
| D. | tConjugation |
| Answer» B. tRemoval of cell wall | |
| 9. |
What would happen if attenuated bacteria are not used for mammalian gene transfer? |
| A. | tCell death |
| B. | tTumor |
| C. | tProliferation |
| D. | tUnsuccessful gene transfer |
| Answer» B. tTumor | |
| 10. |
Which is an important principle in gene transfer using live bacteria? |
| A. | tAmplification |
| B. | tAttenuation |
| C. | tLysis |
| D. | tPhagocytosis |
| Answer» C. tLysis | |
| 11. |
Pilus helps in the transfer of DNA through a process of ___________ |
| A. | tTransduction |
| B. | tTransfection |
| C. | tConjugation |
| D. | tTransformation |
| Answer» D. tTransformation | |
| 12. |
Which of the following occurs in DNA transfer by A. Tumefaciens? |
| A. | tCell lysis |
| B. | tConjugation |
| C. | tInfection |
| D. | tMyeloma |
| Answer» C. tInfection | |
| 13. |
In the cases of Salmonella species, lysis occurs in the __________ |
| A. | tOutside the phagocytic vesicle |
| B. | tInside the phagocytic vesicle |
| C. | tIn lymphatic system |
| D. | tIn nucleus |
| Answer» C. tIn lymphatic system | |
| 14. |
Which of the following is an artificial form of bactofection? |
| A. | tTransduction |
| B. | tProtoplast fusion |
| C. | tBolistics |
| D. | tElectroporation |
| Answer» C. tBolistics | |
| 15. |
Agrobacterium tumefaciens can transfer DNA to animal cells. |
| A. | tTrue |
| B. | tFalse |
| Answer» B. tFalse | |