As you know, Interphase is NOT one of the four phases of Mitosis, however, it is a phase that every cell goes through.  In fact, it is the phase that a cell spends most of its life in.  Interphase is also where everything begins.  I'm sure you already know that a cell's DNA in held in the nucleus.  Well, while the DNA is duplicating (copying) in the nucleus, that is apart of the interphase.
     While the cell is in the interphase section of its life, the cell begins to grow.  I am sure you have heard that a cell grows and splits into two daughter cells.  Well, this is not apart of the interphase, but it does start growing while in the phase that it spends most of its life in.  The cell will later split its original DNA down the middle and create two new daughter cells, but that is after the cell has completed all the phases +




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