MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Cell Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which enzyme is responsible for the synthesis of microRNAs? |
| A. | enhancer |
| B. | dicer |
| C. | splicer |
| D. | promoter |
| Answer» C. splicer | |
| 2. |
To carry out translational-level control, miRNAs bind to __________ of their target mRNAs. |
| A. | 3 |
| B. | 5 |
| C. | intergenic sites |
| D. | exonuclease sites |
| Answer» B. 5 | |
| 3. |
Which of the following is a temporary storage site for RNAs? |
| A. | P-bodies |
| B. | Ribosomes |
| C. | V-bodies |
| D. | Vacuole |
| Answer» B. Ribosomes | |
| 4. |
The degradation of mRNA begins, when its tail reduces to _________ residues. |
| A. | 2 |
| B. | 3 |
| C. | 20 |
| D. | 30 |
| Answer» E. | |
| 5. |
Which of the following is a contributor of mRNA stability? |
| A. | Temperature |
| B. | Poly(A) tail |
| C. | Guanosine |
| D. | Uacil |
| Answer» C. Guanosine | |
| 6. |
When human cell is subjected to stressful condition ___________________ is activated. |
| A. | protein kinase |
| B. | isomerase |
| C. | synthetase |
| D. | helicase |
| Answer» B. isomerase | |
| 7. |
Pre-synthesized mRNAs are stored in the __________________ in an inactive state. |
| A. | nucleus |
| B. | cytoplasm |
| C. | nuclear membrane |
| D. | plasma membrane |
| Answer» C. nuclear membrane | |
| 8. |
During the process of cytoplasmic localization, translation is inhibited. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
Messenger RNA from which gene is localized at the anterior end of fruit fly? |
| A. | oscar |
| B. | bicoid |
| C. | tricoid |
| D. | coloid |
| Answer» C. tricoid | |
| 10. |
Which of the following is not an aspect of translational-level control? |
| A. | mRNA degradation |
| B. | mRNA localization |
| C. | mRNA translation |
| D. | mRNA stability |
| Answer» B. mRNA localization | |
| 11. |
Which of the following are untranslated regions of messenger RNAs? |
| A. | UVs |
| B. | UTs |
| C. | UTRs |
| D. | URs |
| Answer» D. URs | |