MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Molecular Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Certain products produced by the plasmid genes can kill other microbes in its vicinity. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
The drug, quinolone, resistance is observed in which of the following? |
| A. | Klebsiella pneumoniae |
| B. | Bacillus thuringiensis |
| C. | Streptococcus pneumoniae |
| D. | Staphylococcus lentus |
| Answer» B. Bacillus thuringiensis | |
| 3. |
Which of the following types of resistance is not provided by the plasmid for its host? |
| A. | Antibiotic resistance |
| B. | Heat resistance |
| C. | Phage infection |
| D. | Heavy metals |
| Answer» D. Heavy metals | |
| 4. |
Plasmids contribute to the survivality of its host cells. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
What is the main characteristic that is present in a useful transformation method? |
| A. | Property of plasmid |
| B. | Ca2+ concentration |
| C. | Efficiency of transformation |
| D. | Availability of optimal physical conditions |
| Answer» D. Availability of optimal physical conditions | |
| 6. |
WHICH_OF_THE_FOLLOWING_TYPES_OF_RESISTANCE_IS_NOT_PROVIDED_BY_THE_PLASMID_FOR_ITS_HOST??$ |
| A. | Antibiotic resistance |
| B. | Heat resistance |
| C. | Phage infection |
| D. | Heavy metals |
| Answer» D. Heavy metals | |
| 7. |
Certain products produced by the plasmid genes can kill other microbes in its vicinity.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
Plasmids contribute to the survivality of its host cells? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
What is the main characteristic that is present in useful transformation method? |
| A. | Property of plasmid |
| B. | Ca<sup>2+</sup> concentration |
| C. | Efficiency of transformation |
| D. | Availability of optimal physical conditions |
| Answer» D. Availability of optimal physical conditions | |
| 10. |
The quality and yield of plasmid DNA preparation both are enhanced by end A mutation. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 11. |
The DAM protein methylates which residue in the sequence GATC? |
| A. | G |
| B. | A |
| C. | T |
| D. | C |
| Answer» B. A | |
| 12. |
In which of the following methylation dependent restriction system is necessary? |
| A. | Type III |
| B. | Type II |
| C. | Type I |
| D. | mcrA |
| Answer» E. | |
| 13. |
What is the DNA sequence for cleavage by the endonuclease that is coded by hsdR? |
| A. | AACGCNNTGC |
| B. | AAGCCNNTGC |
| C. | AGCCGNTTCC |
| D. | ACGNNTGCTT |
| Answer» B. AAGCCNNTGC | |
| 14. |
Mutation sometimes assists the uptake of DNA material. It is a transformational regulator. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 15. |
Where do the chimera molecules propagate? |
| A. | Plasmid |
| B. | Phagemid |
| C. | Host |
| D. | Carrier |
| Answer» D. Carrier | |