MCQOPTIONS
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MCQOPTIONS
This section includes 21 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. |
In the DSB pathway the 5’-terminal of the broken strand are degraded. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Patch products are non-crossover products. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
What is a patch product? |
| A. | Regions of hybrid DNA |
| B. | Crossover DNA |
| C. | Mutated DNA |
| D. | Recombinant DNA |
| Answer» B. Crossover DNA | |
| 4. |
What is a crossover product? |
| A. | Mutated DNA |
| B. | Reassorted DNA |
| C. | Crossover DNA |
| D. | Spliced DNA |
| Answer» C. Crossover DNA | |
| 5. |
How many processes are present to achieve a resolution? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 6. |
What is the resolution? |
| A. | Cleavage of holiday junction |
| B. | Regeneration of duplex DNA molecule |
| C. | Exchange of DNA fragments |
| D. | Heterochromatin structure formation |
| Answer» C. Exchange of DNA fragments | |
| 7. |
WHAT_IS_A_CROSSOVER_PRODUCT??$ |
| A. | Mutated DNA |
| B. | Reassorted DNA |
| C. | Crossover DNA |
| D. | Spliced DNA |
| Answer» C. Crossover DNA | |
| 8. |
Patch products are non-crossover products.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
What_is_a_patch_product?$ |
| A. | Regions of hybrid DNA |
| B. | Crossover DNA |
| C. | Mutated DNA |
| D. | Recombinant DNA |
| Answer» B. Crossover DNA | |
| 10. |
What is gene conversion? |
| A. | Change in the DNA sequence |
| B. | Non-reciprocal step in the DSB repair pathway |
| C. | Break of DNA strands |
| D. | Branch migration |
| Answer» C. Break of DNA strands | |
| 11. |
In the DSB pathway the 5’-terminal of the broken strand are degraded.$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 12. |
The double strand breaks, the DNA cleaving enzyme generates ____________ |
| A. | Double stranded DNA |
| B. | Fragmentation |
| C. | Single stranded DNA |
| D. | Single stranded over hangs |
| Answer» E. | |
| 13. |
Single strand break repair pathway involves genetic exchange. |
| A. | True |
| B. | False |
| Answer» C. | |
| 14. |
From what the splice recombination product is formed? |
| A. | Mutated DNA |
| B. | Cross over DNA |
| C. | Spliced DNA |
| D. | Recombined DNA |
| Answer» D. Recombined DNA | |
| 15. |
Which type of DNA is connected by a holiday junction? |
| A. | Homologous DNA duplex |
| B. | Heteroduplex DNA |
| C. | Mutated DNA |
| D. | Asymmetric DNA |
| Answer» B. Heteroduplex DNA | |
| 16. |
Which of the following promotes strand exchange? |
| A. | DBS formation |
| B. | Heteroduplex formation |
| C. | Strand invasion protein |
| D. | Branch migration |
| Answer» D. Branch migration | |
| 17. |
How many processes are present to achieve resolution? |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» C. 3 | |
| 18. |
What is resolution? |
| A. | Cleavage of holiday junction |
| B. | Regeneration of duplex DNA molecule |
| C. | Exchange of DNA fragments |
| D. | Heterochromatin structure formation |
| Answer» C. Exchange of DNA fragments | |
| 19. |
What is branch migration? |
| A. | Break and reformation of identical base pairs |
| B. | Formation of lesion |
| C. | Formation of heteroduplex DNA |
| D. | Dissolution occurs |
| Answer» B. Formation of lesion | |
| 20. |
The RecBCD pathway involves the use of ligases. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 21. |
What is the other name of DSB repair pathway? |
| A. | RecBAD pathway |
| B. | RecBCD pathway |
| C. | RecABD pathway |
| D. | RecDCB pathway |
| Answer» C. RecABD pathway | |