At this phase, the nuclear membrane disappears and the centriole duplicates. The dyad consists of a pair of sister chromatids. As for Meiosis II, during Prophase II of Meiosis II, there will not be crossing over occur nor the formation of chiasmata. Therefore, there is no further DNA synthesis in Meiosis II. However, in Interphase II, only G1 and G2 phase will be involved but not S phase. Cytokinesis I occurs.ДЄfter Meiosis I, the cells will undergo interphase II before they proceed to Meiosis II. At Telophase I, the nuclear membranes reappear and form around the dyads. At Anaphase I, the contraction of the spindle fibre causes one of the homologous chromosome moves to the opposite pole for disjunction. At Metaphase I, the homologous chromosome aligns on the metaphase plate which is the middle of the cell. At the end of prophase I, the nuclear membrane disappears. At diakinesis stage, the bivalent is ready for the segregation. At diplotene stage, desynapsis occur causing the disappearance of synaptonemal complex and the chiasma is now visible. This stage can stay for days until the desynapsis occur. At pachytene, the synapsis process is completed and the homologous chromosomes start the crossing over. At zygotene, the synaptonemal complex is formed. At leptotene, the homologous chromosome starts to condense. During prophase I a cell will undergo 5 stages which are leptotene, zygotene, pachytene, diplotene and diakinesis. Meiosis II consists of 4 stages as well which are Prophase II, Anaphase II, Metaphase II and Telophase II.ДЇor Meiosis I, Prophase I is the longest phase in Meiosis. Meiosis I consists of 4 stages which are Prophase I, Anaphase I, Metaphase I and Telophase I. Meiosis which undergoes 2 segregation is subdivided into: During anaphase chromosomes move towards opposite poles of the cell. The chromosomes align at the centre of the cell during metaphase. Дuring prophase, the chromosomes condense and become visible, while in the cytoplasm of the cell spindles form. Before the cell proceeds to M phase, there is a G2/M checkpoint to ensure the DNA is replicated properly. In G2, more organelles will be synthesised. Before the cell proceeds to S phase, there will be a G1/S checkpoint. In G1 phase, synthesis of organelles and proteins occur. There will be checkpoints after G1 and G2 phases to ensure that there will not be any error or mistake before the cell proceeds to the next stage. Before every cell undergoes mitosis or meiosis, a cell must undergo interphase which involves 3 phases: G1 phase, S phase and G2 phase. Interphase is the longest phase in the cell cycle. Meiosis, cell nuclear division where the parental cell divides into four genetically distinct haploid cells which are known as gametes. Mitosis, cell nuclear division in which the parental cell divides into two genetically identical daughter cells with the purpose usually being for growth and repair. There are two types of cell division which are mitosis and meiosis. Cell division is a process which occurs in all living cells.

Prophase cell cycle