During which phase do cells become haploid in meiosis I?

In meiosis I, cells become haploid during Telophase I, which is the phase where the homologous chromosomes that have been separated in Anaphase I reach the opposite poles of the cell. At this point, the cell has divided its genetic material, and each half has one set of chromosomes (each consisting of two sister chromatids) rather than two sets, which is characteristic of diploid cells. This reduction in chromosome number is what defines the transition to a haploid state.

As the cell approaches the end of Telophase I, the nuclear envelope may reform around each set of chromosomes, further emphasizing that the cell has completed the first meiotic division leading to a haploid configuration. Once this phase concludes, the cell will eventually undergo cytokinesis, resulting in two haploid daughter cells.

The other phases of meiosis I serve different functions. Prophase I involves synapsis and crossing over, where homologous chromosomes pair and exchange genetic material. Metaphase I is characterized by the alignment of these homologous pairs at the metaphase plate. Telophase II, on the other hand, is part of meiosis II and deals with the separation of sister chromatids, which does not pertain to the formation of hap