During prophase, chromatin condenses into chromosomes, and the nuclear envelope breaks down. The centrioles near the nucleus begin to separate and move to opposite poles of the cell.
Then during metaphase spindle fibers attach to the centromere of each pair of …show more content…
This prepares the genetic material for directing the metabolic activities of the new cells. The spindle breaks down and new nuclear envelope forms.
Interphase is when the cell is no longer actively splitting.
In contrast, meiosis gives rise to four unique daughter cells, each of which has half the number of chromosomes as the parent cell. Because meiosis creates cells that are destined to become gametes this reduction in chromosome number is critical. The stages are prophase I, metaphase I, anaphase I, telophase I, prophase II, metaphase II, anaphase II, telophase II. Meiosis I reduces the ploidy level from 2n to n while Meiosis II divides the remaining set of chromosomes in a mitosis-like division.
During prophase I the chromosomes condense, and the nuclear envelope breaks down. Crossing-over occurs which is the process by which the two chromosomes of a homologous pair exchange equal segments with each other. This facilitates a wide range of genetic variation.
Metaphase I pairs of homologous chromosomes move to the equator of the cell then during anaphase I, homologous chromosomes move to the opposite poles of the