Final answer:
For the following events:
- A. Separation of conjoined chromatids within a pair of sister chromatids occurs during meiosis II.
- B. Pairing of homologous chromosomes occurs during meiosis I.
- C. Alignment of chromatids along the metaphase plate occurs during meiosis II.
- D. Attachment of sister chromatids to both poles occurs during meiosis II.
Step-by-step explanation:
When looking at cell division, it is crucial to differentiate between the events that occur during mitosis, meiosis I, and meiosis II. Here's a clarification of each event for a better understanding:
- A. Separation of conjoined chromatids within a pair of sister chromatids: This event occurs during anaphase II of meiosis II, where sister chromatids are pulled apart and move towards opposite poles.
- B. Pairing of homologous chromosomes: This process takes place during prophase I of meiosis I, allowing them to align and exchange genetic material.
- C. Alignment of chromatids along the metaphase plate: Chromatids align at the metaphase plate during metaphase of both mitosis and meiosis II.
- D. Attachment of sister chromatids to both poles: This attachment occurs during the prometaphase of mitosis and meiosis II. The microtubules from opposite poles attach to the kinetochores of sister chromatids.
These events are critical in ensuring that cells divide accurately and that genetic information is correctly distributed to daughter cells.