MCQOPTIONS
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MCQOPTIONS
This section includes 10 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. |
Which of the following types of DNA polymerase does not take part in DNA repair? |
| A. | DNA polymerase I |
| B. | DNA polymerase II |
| C. | DNA polymerase III |
| D. | DNA polymerase IV |
| Answer» D. DNA polymerase IV | |
| 2. |
DNA polymerase III has ___________ subunits. |
| A. | 4 |
| B. | 6 |
| C. | 8 |
| D. | 10 |
| Answer» E. | |
| 3. |
Which of the following is false about klenow fragment? |
| A. | Polymerization activity |
| B. | 3’→5’ exonuclease activity |
| C. | 5’→3’ exonuclease activity |
| D. | 324 – 928 residue of polymerase I |
| Answer» C. 5’→3’ exonuclease activity | |
| 4. |
Polymerase I has two fragments. The residue of larger fragment consists from ____________ residues. |
| A. | 1 – 234 |
| B. | 234 – 658 |
| C. | 324 – 928 |
| D. | 234 – 928 |
| Answer» D. 234 – 928 | |
| 5. |
Polymerase I has the highest affinity for dNTPs. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
All mutation in polymerases is lethal except the mutation of polymerase III. |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
DNA polymerase II can polymerase upto ______________ nucleotides per minute at 37˚C. |
| A. | 50 |
| B. | 500 |
| C. | 5000 |
| D. | 50000 |
| Answer» B. 500 | |
| 8. |
Which of the following is used in prokaryotic replication? |
| A. | DNA polymerase I |
| B. | DNA polymerase II |
| C. | DNA polymerase III |
| D. | DNA polymerase δ |
| Answer» D. DNA polymerase δ | |
| 9. |
Choose the odd one out with respect to DNA polymerase III. |
| A. | dna E |
| B. | dna N |
| C. | dna Q |
| D. | dna B |
| Answer» E. | |
| 10. |
Which of the following types of DNA polymerase has 3’→5’ exonuclease activity? |
| A. | DNA polymerase I |
| B. | DNA polymerase II |
| C. | DNA polymerase III |
| D. | DNA polymerase IV |
| Answer» B. DNA polymerase II | |