MCQOPTIONS
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MCQOPTIONS
This section includes 5 Mcqs, each offering curated multiple-choice questions to sharpen your Cytogenetics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
In which microorganism will you find attenuation by alternate loop formation due to ribosomal stalling? |
| A. | S. aureus |
| B. | E. coli |
| C. | S. typhimurium |
| D. | B. subtlis |
| Answer» E. | |
| 2. |
Which of this mode of trp regulation is not possible in eukaryotes? |
| A. | Anti-TRAP Trp-TRAP |
| B. | Anti-Terminator stabilization |
| C. | Attenuation of trp |
| D. | Trp-TRAP binding |
| Answer» D. Trp-TRAP binding | |
| 3. |
How many stem loop structures play important role in complete system of tryptophan gene regulation? |
| A. | 3 |
| B. | 4 |
| C. | 6 |
| D. | 8 |
| Answer» D. 8 | |
| 4. |
When uncharged tRNA concentration is low what will you expect as the activity of tryptophan operon? |
| A. | Low |
| B. | Medium |
| C. | High |
| D. | Very high |
| Answer» E. | |
| 5. |
We know that lactose has a positive impact on the activity of the lac operon. Tryptophan s presence has a ________________ |
| A. | Positive feedback |
| B. | Negative feedback |
| C. | No difference |
| D. | Highly positive impact |
| Answer» C. No difference | |