MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Cytogenetics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Electron dense bars located in the synaptonemal complex in pachytene is _________________ |
| A. | LC complex |
| B. | Recombination nodule |
| C. | Pachytene cluster |
| D. | Synaptomere |
| Answer» C. Pachytene cluster | |
| 2. |
Choose the wrong statement. |
| A. | DNA replication in pachytene if prevented will lead to arm breakage |
| B. | Replication in pachytene is delayed semiconservative replication |
| C. | This replication sites are 200bp long |
| D. | The DNA replication in pachytene can be inhibited by normal replication inhibiting agents |
| Answer» C. This replication sites are 200bp long | |
| 3. |
What is the stretch of DNA remaining unreplicated during pachytene? |
| A. | 200bp |
| B. | 1000bp |
| C. | 104bp |
| D. | 10 kb |
| Answer» B. 1000bp | |
| 4. |
Crossing over doesn’t take place ________________ |
| A. | Between two sister chromatids |
| B. | Between two non-sister chromatids |
| C. | For recombination repair |
| D. | Between three chromatids |
| Answer» E. | |
| 5. |
WHAT_IS_THE_STRETCH_OF_DNA_REMAINING_UNREPLICATED_DURING_PACHYTENE??$ |
| A. | 200bp |
| B. | 1000bp |
| C. | 104bp |
| D. | 10 kb |
| Answer» B. 1000bp | |
| 6. |
Electron dense bars located in the synaptonemal complex in pachytene is _________________$ |
| A. | LC complex |
| B. | Recombination nodule |
| C. | Pachytene cluster |
| D. | Synaptomere |
| Answer» C. Pachytene cluster | |
| 7. |
Choose_the_wrong_statement.$ |
| A. | DNA replication in pachytene if prevented will lead to arm breakage |
| B. | Replication in pachytene is delayed semiconservative replication |
| C. | This replication sites are 200bp long |
| D. | The DNA replication in pachytene can be inhibited by normal replication inhibiting agents |
| Answer» C. This replication sites are 200bp long | |
| 8. |
Crossing over doesn’t take place _______________?# |
| A. | Between two sister chromatids |
| B. | Between two non-sister chromatids |
| C. | For recombination repair |
| D. | Between three chromatids |
| Answer» E. | |
| 9. |
In pachytene the polar arrangement of chromosomes disappears. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
What is the fate of nucleolus in pachytene? |
| A. | Nucleolus disappears |
| B. | Nucleolus appears like thin chromatin |
| C. | Nucleolus is disintegrated |
| D. | Nucleolus remains attached to particular tetrad |
| Answer» E. | |
| 11. |
The chiasma is first formed and then at that point crossing over takes place. |
| A. | True |
| B. | False |
| Answer» C. | |
| 12. |
In an experiment you introduce a pair of unpaired homologous chromosomes into pachytene stage, what will you expect to observe? |
| A. | Pairing and subsequent recombination |
| B. | Pairing will occur but no recombination |
| C. | No pairing will occur but recombination will take place |
| D. | Neither pairing nor recombination |
| Answer» E. | |
| 13. |
Which is the longest stage of spermatogenesis? |
| A. | Zygotene |
| B. | Pachytene |
| C. | Diplotene |
| D. | Dikinesis |
| Answer» C. Diplotene | |
| 14. |
Synaptonemal complex is shed in _______________ stage, from parts other than recombination site. |
| A. | Zygotene |
| B. | Pachtene |
| C. | Diplotene |
| D. | Diakinesis |
| Answer» D. Diakinesis | |
| 15. |
The point where the synaptonemal complex is attached to nuclear envelope is called _______________ |
| A. | Bouque stick |
| B. | Meiotic point |
| C. | Fixation point |
| D. | Telomerin |
| Answer» D. Telomerin | |