MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Cytogenetics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
STREPTOMYCIN_RESISTANCE_IS_CONFERRED_BY______________?$ |
| A. | Modification of antibiotic |
| B. | Modification of target |
| C. | Modification of uptake |
| D. | Using different insensitive pathway |
| Answer» C. Modification of uptake | |
| 2. |
Bacteriocins are produced by bacteria in __________$ |
| A. | Lag phase |
| B. | Log phase |
| C. | Transition phase |
| D. | S phase |
| Answer» E. | |
| 3. |
Bacteriocins_are________________$ |
| A. | Toxic nucleic acids |
| B. | Non-ribosomally synthesized toxic proteins |
| C. | Ribosomally synthesized toxic proteins |
| D. | Modified normal proteins |
| Answer» D. Modified normal proteins | |
| 4. |
What is the general target of bacteriocins? |
| A. | Nuclei |
| B. | Plasma mambrane |
| C. | Cell wall |
| D. | ECM |
| Answer» D. ECM | |
| 5. |
Which of the following plasmids fir the definition of episomes? |
| A. | F factors |
| B. | R factors |
| C. | Col factors |
| D. | RTF factors |
| Answer» B. R factors | |
| 6. |
Which of the following antibiotic resistance is through alteration of uptake? |
| A. | Streptimycin |
| B. | Chloramphenicol |
| C. | Tetracyclin |
| D. | Rifampicin |
| Answer» D. Rifampicin | |
| 7. |
Pilli forming gene is a must for plasmid transfer. State whether it is true or false. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
In an experiment you want to express your gene of interest in a prokaryote through a plasmid. What would be your ideal copy number? |
| A. | 2 or 3 |
| B. | 10 |
| C. | 80 |
| D. | 100 |
| Answer» B. 10 | |
| 9. |
Which of the following is not a part of RTF? |
| A. | Origin of replication |
| B. | Chloranphemicol resistance |
| C. | Origin of transfer |
| D. | Pilli forming gene |
| Answer» C. Origin of transfer | |
| 10. |
Which class of plasmids assists in the production of bacteriocins? |
| A. | F plasmid |
| B. | F’ plasmid |
| C. | R plasmid |
| D. | Col plasmid |
| Answer» E. | |
| 11. |
Which of the following is not true about plasmids? |
| A. | They are extrachromosomal DNA |
| B. | They are double stranded |
| C. | They confer antibiotic resistance |
| D. | They may get incorporated in chromosome |
| Answer» E. | |
| 12. |
In which of the following will you expect plasmids to be absent? |
| A. | Streptococcus sp |
| B. | Schizosaccharomyces pombe |
| C. | Panthera sp |
| D. | Haemophilis sp |
| Answer» D. Haemophilis sp | |