Final answer:
During telophase II of meiosis, sister chromatids that have been pulled to opposite poles begin to decondense and nuclear envelopes reform around each set of chromatids, resulting in four unique haploid cells.
Step-by-step explanation:
Meiosis is a process of cell division that reduces the chromosome number by half, creating four haploid cells, each with unique genetic combinations. This reduction is accomplished in two rounds of division, meiosis I and meiosis II. During anaphase II, the sister chromatids are separated by spindle fibers and pulled towards the opposite poles of the cell. Following this, telophase II begins. In telophase II, the chromatids that have reached the cell poles begin to decondense, meaning they loosen up from their tightly compacted form characteristic of cell division..
The completion of these processes results in the formation of four non-identical haploid cells, each containing one unique copy of each chromosome pair, a consequence of genetic recombination and assortment during meiosis I. Thus, telophase II is crucial for reinstating the nuclei and finalizing the meiotic division.