MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 13 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. |
Ribonuclease P is involve in the processing of ___________________ |
| A. | sno RNA |
| B. | rRNA |
| C. | pre-tRNA |
| D. | pre-mRNA |
| Answer» D. pre-mRNA | |
| 2. |
Transfer RNAs (tRNA) are transcribed by _________________ |
| A. | pre-RNA |
| B. | rDNA |
| C. | tDNA |
| D. | siRNA |
| Answer» D. siRNA | |
| 3. |
Which among the following have the largest number of tRNA genes? |
| A. | humans |
| B. | bacteria |
| C. | yeast |
| D. | fruit flies |
| Answer» B. bacteria | |
| 4. |
5S rRNA is present only in eukaryotes. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
The processing of pre-rRNA is done using __________ |
| A. | nucleolus |
| B. | mRNA |
| C. | snoRNA |
| D. | siRNA |
| Answer» D. siRNA | |
| 6. |
Which of the following is a pre-rRNA? |
| A. | 5S |
| B. | 5.8S |
| C. | 45S |
| D. | 18S |
| Answer» D. 18S | |
| 7. |
How many post-translational modifications occur in the pre-rRNA (primary transcript)? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 8. |
How many types of distinct ribosomal RNAs are present in eukaryotic ribosomes? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» E. | |
| 9. |
Nontranscribed spacer is not transcribed. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
Which of the following are ideal subjects for the study of rRNA synthesis and processing? |
| A. | spermatocytes |
| B. | mitochondria |
| C. | oocytes |
| D. | amphibians |
| Answer» D. amphibians | |
| 11. |
Aggregated clusters of rDNA in a cell are called _______________ |
| A. | nucleoli |
| B. | chromatin |
| C. | chromosome |
| D. | ribosome |
| Answer» B. chromatin | |
| 12. |
The human genome consists of _____ rDNA. |
| A. | 2 |
| B. | 4 |
| C. | 5 |
| D. | 7 |
| Answer» B. 4 | |
| 13. |
In a mammalian cell, which is the most abundant type of RNA? |
| A. | rRNA |
| B. | mRNA |
| C. | siRNA |
| D. | tRNA |
| Answer» B. mRNA | |