MCQOPTIONS
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MCQOPTIONS
This section includes 11 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. |
The SINE commonly contains the restriction site for the endonuclease __________ |
| A. | Pvu I |
| B. | Spa I |
| C. | Alu I |
| D. | Xma I |
| Answer» D. Xma I | |
| 2. |
SINES are transcribed by __________ |
| A. | Klenow fragment |
| B. | Polymerase I |
| C. | Polymerase II |
| D. | Polymerase III |
| Answer» E. | |
| 3. |
The consensus sequence of the L1 LINE family has three open reading frames. |
| A. | True |
| B. | False |
| Answer» C. | |
| 4. |
Which of the following about the L1 LINE family is correct? |
| A. | Highly accumulated in autosomes |
| B. | About 37% of the total human genome |
| C. | Presence of short direct repeats on either end |
| D. | Approximately 2 kb in length |
| Answer» D. Approximately 2 kb in length | |
| 5. |
LINE and SINE are examples of __________ |
| A. | LTR retrotransposon |
| B. | Composite transposon |
| C. | Non-LTR retrotransposon |
| D. | Ac-element |
| Answer» D. Ac-element | |
| 6. |
LTR-retrotransposons are abundantly found in __________ |
| A. | Bacteria |
| B. | Virus |
| C. | mammals |
| D. | Yeast |
| Answer» D. Yeast | |
| 7. |
Retrotransposons are of how many types? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 8. |
Retrotransposons transposes through the RNA intermediates. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
Hybrid dysgenesis occurs in which of the following cases? |
| A. | Crossing between P-female and P-male |
| B. | Crossing between M-female and M-male |
| C. | Crossing between P-female and M-male |
| D. | Crossing between M-female and P-male |
| Answer» E. | |
| 10. |
P-strains of the Drosophila have active P-elements. |
| A. | True |
| B. | False |
| Answer» C. | |
| 11. |
Dysgenesis occurs in every cell of the Drosophila. |
| A. | True |
| B. | False |
| Answer» C. | |