At what stage do sister chromatids separate in meiosis?

Sister chromatids separate during Anaphase II of meiosis. This is a key event in the meiotic process where the two sister chromatids, which have been duplicated and aligned in the previous stages, are pulled apart toward opposite poles of the cell.

During Anaphase II, each chromatid is considered an individual chromosome as it moves away from its twin. This is essential for ensuring that each gamete (sperm or egg cell) receives an equal amount of genetic material. The separation of sister chromatids at this stage is critical for the formation of haploid cells in meiosis, which ultimately leads to genetic diversity in sexually reproducing organisms.

It is important to note that prior to Anaphase II, during Anaphase I, homologous chromosomes separate rather than sister chromatids. Therefore, understanding the distinctions and processes in each phase helps clarify why the correct choice of Anaphase II is vital for proper meiosis.