MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Cytogenetics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Recombination occurs in ______________ |
| A. | Leptotene |
| B. | Zygotene |
| C. | Pachytene |
| D. | Diplotene |
| Answer» D. Diplotene | |
| 2. |
In case of chicken foot Holliday intermediate, the template strand for synthesis across lesion is___________ |
| A. | The parent strand aligned along strand with lesion |
| B. | The parent strand aligned against lesion strand |
| C. | The daughter strand with lesion |
| D. | The daughter strand without lesion |
| Answer» E. | |
| 3. |
In single stranded nick__________ |
| A. | The 3’-OH end of the nick invades other complete strands |
| B. | Both the strands undergo fork regression |
| C. | The nick is treated like an okazaki fragment point |
| D. | The nick is bypassed without repair |
| Answer» B. Both the strands undergo fork regression | |
| 4. |
Rec A doesn’t____________________ |
| A. | Line up the homologous chromosome with the one it surrounds |
| B. | Perform spooling |
| C. | Cleaves at recombination site |
| D. | Help in branch migration |
| Answer» D. Help in branch migration | |
| 5. |
IN_CASE_OF_CHICKEN_FOOT_HOLLIDAY_INTERMEDIATE,_THE_TEMPLATE_STRAND_FOR_SYNTHESIS_ACROSS_LESION_IS___________?$ |
| A. | The parent strand aligned along strand with lesion |
| B. | The parent strand aligned against lesion strand |
| C. | The daughter strand with lesion |
| D. | The daughter strand without lesion |
| Answer» E. | |
| 6. |
Recombination_occurs_in_______________$ |
| A. | Leptotene |
| B. | Zygotene |
| C. | Pachytene |
| D. | Diplotene |
| Answer» D. Diplotene | |
| 7. |
In single stranded nick_________? |
| A. | The 3’-OH end of the nick invades other complete strands |
| B. | Both the strands undergo fork regression |
| C. | The nick is treated like an okazaki fragment point |
| D. | The nick is bypassed without repair |
| Answer» B. Both the strands undergo fork regression | |
| 8. |
The Ruv A of the resolvosome complex binds at________ |
| A. | On each chromosome on either side of branch point |
| B. | At the branch point |
| C. | After exchange |
| D. | At the terminals |
| Answer» C. After exchange | |
| 9. |
Rec A doesn’t____________________$ |
| A. | Line up the homologous chromosome with the one it surrounds |
| B. | Perform spooling |
| C. | Cleaves at recombination site |
| D. | Help in branch migration |
| Answer» D. Help in branch migration | |
| 10. |
How many Rec A are present in one turn around the single stranded chromosome? |
| A. | 5.2 |
| B. | 9.0 |
| C. | 2.3 |
| D. | 6.2 |
| Answer» E. | |
| 11. |
Holliday intermediate could be mistaken for ___________ under microscope. |
| A. | Hetero chromatin |
| B. | Circular plasmid |
| C. | Linear extracellular chromosome |
| D. | Broken chromosome |
| Answer» C. Linear extracellular chromosome | |
| 12. |
If there are 2 strands of chromosomes that can pair with a single strand, and they are both paired to the same strand, their junction is called_______________ |
| A. | Chimera |
| B. | Chi |
| C. | Double binding |
| D. | Branch point |
| Answer» E. | |
| 13. |
If an organism has 8 chromosomes in diploid condition, what will be the number of chromosomes after telophase of meiosis 1? |
| A. | 2 |
| B. | 4 |
| C. | 8 |
| D. | 16 |
| Answer» D. 16 | |
| 14. |
Homologous DNA recombination in prokaryotes take place for________________ |
| A. | Increasing variability |
| B. | Repair |
| C. | Incorporation of gene |
| D. | Taking up a plasmid from media |
| Answer» C. Incorporation of gene | |