MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of these statements is true about meiosis I? |
| A. | Crossing over leads to genetic variability |
| B. | Diplotene is short lived in vertebrates |
| C. | Diakinesis is followed by cytokinesis |
| D. | Chiasmata formation occurs during metaphase I |
| Answer» B. Diplotene is short lived in vertebrates | |
| 2. |
The stage preceding the stage during which crossing over takes place is ______ |
| A. | diplotene |
| B. | pachytene |
| C. | zygotene |
| D. | leptotene |
| Answer» D. leptotene | |
| 3. |
How do chromatids reach the poles of the cells during anaphase? |
| A. | Action of centromeres |
| B. | Disintegration of spindle fibers |
| C. | Shortening of microtubules |
| D. | Movement of arms of chromatids |
| Answer» D. Movement of arms of chromatids | |
| 4. |
Which of the following statements is false regarding interkinesis? |
| A. | It is mostly short lived |
| B. | It is followed by prophase II |
| C. | It occurs after telophase I |
| D. | Replication takes place |
| Answer» E. | |
| 5. |
Nuclear membrane does not appear at the end of anaphase I. True or false? |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
During which stage of meiosis do the sister chromatids separate? |
| A. | Telophase I |
| B. | Anaphase I |
| C. | Anaphase II |
| D. | Telophase II |
| Answer» D. Telophase II | |
| 7. |
Which of these stages is characterized by the disappearance of the nucleolus? |
| A. | Zygotene |
| B. | Pachytene |
| C. | Diplotene |
| D. | Diakinesis |
| Answer» E. | |
| 8. |
Which of these is true about anaphase I? |
| A. | Sister chromatids remain attached at the centromeres |
| B. | Bivalent is unequally separated |
| C. | Homologous chromosomes remain together |
| D. | It takes place before diakinesis |
| Answer» B. Bivalent is unequally separated | |
| 9. |
During which stage does assembly of meiotic spindle take place? |
| A. | Pachytene |
| B. | Diakinesis |
| C. | Metaphase I |
| D. | Diplotene |
| Answer» C. Metaphase I | |
| 10. |
At what stage can one visualize chiasmata? |
| A. | Diplotene |
| B. | Pachytene |
| C. | Leptotene |
| D. | Zygotene |
| Answer» B. Pachytene | |
| 11. |
What shape is the chiasmata? |
| A. | S-shaped |
| B. | Y-shaped |
| C. | X-shaped |
| D. | L-shaped |
| Answer» D. L-shaped | |
| 12. |
During which stage does the synaptonemal complex dissolve? |
| A. | Leptotene |
| B. | Pachytene |
| C. | Diplotene |
| D. | Zygotene |
| Answer» D. Zygotene | |
| 13. |
What is the enzyme involved in crossing over? |
| A. | Isomerase |
| B. | Invertase |
| C. | Transferase |
| D. | Recombinase |
| Answer» E. | |