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During mitosis, a cell divides into two identical cells referred to as daughter cells. In order for both cells to be fully functional and to be able to mature, they each need a complete set of DNA.
Cells needs a copy of their DNA before existing cells divide to produce new cells.
DNA Replication
Cells make a copy of their DNA in other to ensures that each daughter cell gets a copy of the genome, and therefore, ensure successful inheritance of genetic traits.
Every time a cell undergoes mitosis, various enzymes work to split each DNA strand in half, and then replace the missing half on the separated strands with corresponding nucleotides, leaving you with two identical strands.
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