Final answer:
Typical telophase events like chromosomal decondensing and nuclear envelope formation may not occur during telophase I, as these events are species-dependent and may differ in plants and animals.
Step-by-step explanation:
Most of the typical events of telophase may not occur during telophase I of meiosis. In telophase I, while the chromosomes do reach the opposite poles of the cell, the subsequent events vary based on the species. For example, the chromosomes may decondense and nuclear envelopes may form around the chromatids, or alternatively, these events might not take place until after telophase II.
In animal and fungal cells, cytokinesis often occurs with the formation of a cleavage furrow, without the reformation of nuclei, through the constriction of an actin ring. However, in plant cells, a cell plate forms during cytokinesis through the fusion of Golgi vesicles, which eventually leads to the development of new cell walls that separate the daughter cells.
In telophase, the separated chromosomes arrive at opposite poles. The remainder of the typical telophase events may or may not occur, depending on the species. In some organisms, the chromosomes decondense and nuclear envelopes form around the chromatids in telophase I.
In other organisms, cytokinesis (the physical separation of the cytoplasmic components into two daughter cells) occurs without reformation of the nuclei. For example, in nearly all species of animals and some fungi, cytokinesis separates the cell contents via a cleavage furrow. In plants, a cell plate is formed during cell cytokinesis by Golgi vesicles fusing at the metaphase plate, leading to the formation of cell walls that separate the two daughter cells.