![]() These chromatids are held together by the centromere. Each pair of chromatids is a product from duplication of one chromosome in the S phase from interphase. ĭuring interphase, the chromosomes are already doubled, this has two closely associated subunits called chromatids. Chromosomes are duplicated during this same phase, this produces 2 sister chromatids, allowing each daughter cell which results from the mitotic division to have the diploid number of chromosomes.ĭuring Gap phase 2 the cell continues to grow and it produces specific proteins necessary for cell division so that mitosis can follow interphase.Īnother vital event which occurs during interphase is that the cell repairs any DNA damage, to ensure that no undesirable mutations are passed on to the progeny cells. G1( gap phase 1 ), S ( synthesis phase ) and G2 ( gap phase 2).ĭuring Gap phase 1 biosynthetic activity in the cell is increased as the cell grows and replicates it's organelles whilst producing spare proteins.ĭuring S phase the cell must replicate its DNA, in order for the two daughter cells produced via the following division to have a complete set of genetic material. ![]() Interphase can be divided into 3 main phases It is the preparation period preceding mitosis, in which the cell grows and it's DNA is replicated. Interphase constitutes for most of the cell cycle In this phase, the chromosomes are invisible through a light microscope. At the end of anaphase, each pole contains a complete compilation of chromosomes.If a cell is not undergoing mitotic cell division, the cell is in interphase.
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