How is DNA replication related to cancer?
Mistakes in the replication of DNA create cells that become cancerous
Cancer cells are essentially mutated cells. Cancer cells often have a mutation that disables the gene that regulates the replication of the cell. Normal healthy cells replicate themselves when a neighbor cells dies and then stop replicating. A cancer cells continues to replicate itself endlessly.
The process of copying the DNA is incredibly complex. Mistakes happen in the process that create cancerous cells. Cancer cells are created in the body every day in the process of copying the DNA in cell replication. The immune system is effective in destroying these cancerous cells before the cells can endlessly replicate themselves.
The disease of Cancer occurs when the cancerous cells replicate faster than the immune system can destroy them.