MCQOPTIONS
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MCQOPTIONS
This section includes 9 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. |
Methylation of cytosine increases the transition mutation of cytosine to __________ |
| A. | Guanine |
| B. | Adenine |
| C. | Thymine |
| D. | Adenine and thymine |
| Answer» D. Adenine and thymine | |
| 2. |
Both de-novo methylation and maintenance methylation ensures the methylation pattern is inherited from parent to daughters. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
De-novo methylation is done in the newly synthesized DNA strand at opposite positions of the methylated sites on the parent strand. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
How many types of methylation processes are known in eukaryotic cells? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 5. |
Prokaryotic methylation occurs at ____________ |
| A. | AG |
| B. | TC |
| C. | GT |
| D. | CA |
| Answer» E. | |
| 6. |
The region of maximum methylation in the genome is predominantly activated. |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
Among the following which shows the maximum rate of cytosine methylation? |
| A. | Insects |
| B. | Worms |
| C. | Animals |
| D. | Plants |
| Answer» E. | |
| 8. |
Which is known to be methylated in eukaryotic cells? |
| A. | Adenine |
| B. | Guanine |
| C. | Cytosine |
| D. | Thymine |
| Answer» D. Thymine | |
| 9. |
Methylation at which of the following bases is possible within the following oligonucleotides? |
| A. | GAATTC |
| B. | GCGC |
| C. | AGGTTC |
| D. | AAGCTT |
| Answer» C. AGGTTC | |