MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Cytogenetics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
IRE-BP does not bind to _______________ |
| A. | IRES |
| B. | Stem loop in 5’ end of Ferritin |
| C. | Stem loop in 3’ end of Transferrin |
| D. | AU rich regions in IRE |
| Answer» B. Stem loop in 5’ end of Ferritin | |
| 2. |
The AU rich regions on the stem loop structure of IRE ____________ |
| A. | Promote translation |
| B. | Promote degradation |
| C. | Decrease translation |
| D. | Decrease degradation |
| Answer» C. Decrease translation | |
| 3. |
In Eukaryotes the region between 1st AUG and 5’-G cap is known as ___________ |
| A. | Leader |
| B. | Attenuator |
| C. | UTR |
| D. | ORF |
| Answer» D. ORF | |
| 4. |
THE_AU_RICH_REGIONS_ON_THE_STEM_LOOP_STRUCTURE_OF_IRE_____________?$ |
| A. | Promote translation |
| B. | Promote degradation |
| C. | Decrease translation |
| D. | Decrease degradation |
| Answer» C. Decrease translation | |
| 5. |
IRE-BP does not bind to _______________$ |
| A. | IRES |
| B. | Stem loop in 5’ end of Ferritin |
| C. | Stem loop in 3’ end of Transferrin |
| D. | AU rich regions in IRE |
| Answer» B. Stem loop in 5‚Äö√Ñ√∂‚àö√ë‚àö¬• end of Ferritin | |
| 6. |
In Eukaryotes the region between 1st AUG and 5’-G cap is known as __________?# |
| A. | Leader |
| B. | Attenuator |
| C. | UTR |
| D. | ORF |
| Answer» D. ORF | |
| 7. |
Which of the following will effectively cause normal translation from an initiation AUG, blocked by a strong AUG upstream? |
| A. | Hairpin loop near the 1<sup>st</sup> AUG |
| B. | No measure required |
| C. | In frame stop codon between two AUGs |
| D. | Deletion of the GAP between the two AUGs |
| Answer» D. Deletion of the GAP between the two AUGs | |
| 8. |
A frame shift mutation can lead to alternate proteins. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
What is the final factor in eukaryotes that releases the peptide and ribosome? |
| A. | eRRF |
| B. | EF2 |
| C. | RF3 |
| D. | RF4 |
| Answer» D. RF4 | |
| 10. |
During translation RF1 recognizes the stop codon UGA and translation come to a halt as RF3 is called in. |
| A. | True |
| B. | False |
| Answer» C. | |
| 11. |
EF2 structurally mimics_______ |
| A. | EF1 |
| B. | tRNA |
| C. | Ribosomal subunit |
| D. | EF-Ts |
| Answer» B. tRNA | |
| 12. |
The eukaryotic initiation codon recognizes________ |
| A. | f-Met-tRNA-f-Met |
| B. | Met-tRNAi-Met |
| C. | f-Met-tRNAi-Met |
| D. | f-Met-tRNA-Met |
| Answer» D. f-Met-tRNA-Met | |
| 13. |
What is the eukaryotic homologue for EF-G? |
| A. | EF1 |
| B. | EF2 |
| C. | EF3 |
| D. | EF4 |
| Answer» C. EF3 | |