Interphase L: Genetic Analysis

When a heterozygous individual has his genetic loci separated and located on two different homologous chromosomes and the meiosis process kicks in, it all begins with the interphase process. Meiosis begins with a one diploid parent cell with 46 chromosomes, and ends in four haploid cells with 23 chromosomes each. In the interphase l process, it has three stages and then proceeds into prophase I. The stages include the G1 phase, in which the cell grows, the S phase, in which the chromosomes we started with and the centrioles replicates and the G2 phase, where the cell prepares for Meiosis. Prophase l is the beginning phase of Meiosis, in which the homologous chromosomes condense as well as become visible. The nuclear envelope also dissolves

From there, genetic information is exchanged in the process of crossing over with the homologous chromosomes. The genetic material from each chromosome switch to obtain information from each chromosome. With that, 4 unique chromatids are formed. In metaphase l, the tetrads then line up near the center of the cell so that it could be split up in anaphase l. Anaphase l starts with the microtubules beginning to form and attach themselves to the center of the chromosomes, also called the centromere. The centromeres then break and the microtubules pull apart the chromosomes, while the sister chromatids are still attached. In the next process, telophase l, the nuclear envelope is forming and two haploid daughter cells with 23 chromosomes, are created after the process of Cytokinesis, which is the cytoplasmic process of cell separation. Interkinesis is the period of rest and then the process proceeds to interphase ll. In interphase ll, there is no replication of the DNA since that had already occurred in meiosis l, but the cell does in fact grow. In prophase ll, the nuclear envelope disintegrates and the centrioles line up. In metaphase ll, the chromosomes line up along the equator and the microtubules attach to the