MCQOPTIONS
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MCQOPTIONS
This section includes 20 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. |
Though unusual, pre – tRNA also undergo splicing. It is achieved by the help of __________ |
| A. | tRNA itself |
| B. | Splicosome |
| C. | RNA polymerase exonuclease activity |
| D. | Endonuclease |
| Answer» E. | |
| 2. |
The 3’ CCA terminus is exceptionally added by the RNA polymerase during transcription. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
The common sequence for all tRNAs at their 3’ end is __________ |
| A. | CCC |
| B. | CCT |
| C. | GGA |
| D. | CCA |
| Answer» E. | |
| 4. |
RNase P is a ribozyme. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
The pre – tRNA involves cleavage by __________ |
| A. | tRNA itself |
| B. | RNase H |
| C. | RNase P |
| D. | RNA polymerase |
| Answer» D. RNA polymerase | |
| 6. |
Each tRNA is produced from different transcripts. |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
The bacterial pre – rRNA undergo __________ cleavage. |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 8. |
Which one of the following rRNA undergoes least post-transcriptional processing? |
| A. | 28S |
| B. | 18S |
| C. | 5.8S |
| D. | 5S |
| Answer» E. | |
| 9. |
How many pre – rRNA transcript in eukaryotes are used to produce all the different mature rRNAs? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 10. |
THE_3‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚ÀÖ¬•_CCA_TERMINUS_IS_EXCEPTIONALLY_ADDED_BY_THE_RNA_POLYMERASE_DURING_TRANSCRIPTION.?$# |
| A. | True |
| B. | False |
| Answer» C. | |
| 11. |
Though unusual, pre – tRNA also undergo splicing. It is achieved by the help of __________$# |
| A. | tRNA itself |
| B. | Splicosome |
| C. | RNA polymerase exonuclease activity |
| D. | Endonuclease |
| Answer» E. | |
| 12. |
The common sequence for all tRNAs at their 3’ end is _________?# |
| A. | CCC |
| B. | CCT |
| C. | GGA |
| D. | CCA |
| Answer» E. | |
| 13. |
RNase P is a ribozyme? |
| A. | True |
| B. | False |
| Answer» B. False | |
| 14. |
The pre – tRNA involves cleavage by __________$ |
| A. | tRNA itself |
| B. | RNase H |
| C. | RNase P |
| D. | RNA polymerase |
| Answer» D. RNA polymerase | |
| 15. |
Each tRNA is produced from different transcripts . |
| A. | True |
| B. | False |
| Answer» C. | |
| 16. |
Which of the following types of processing is not used to prepare mature rRNA? |
| A. | Splicing |
| B. | Methylation |
| C. | Glycosylation |
| D. | Conversion of uridine |
| Answer» B. Methylation | |
| 17. |
The bacterial pre – rRNA undergo __________ cleavage.$ |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 18. |
Which one of the following rRNA undergoes least post – transcriptional processing?$ |
| A. | 28S |
| B. | 18S |
| C. | 5.8S |
| D. | 5S |
| Answer» E. | |
| 19. |
In bacterial cell the 3 rRNAs 23S, 16S and 5S are derived from different transcripts. |
| A. | True |
| B. | False |
| Answer» C. | |
| 20. |
How many pre – rRNA transcript in eukaryotes are used to produce all the different mature rRNAs? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |