How important is genetic material to be replicated exactly?

• Every organism, no matter how simple or complex, have the nucleic acids (DNA AND RNA)
• These nucleic acids are essential, as they contain specific coding sequences that will lead to the formation of proteins
• If you change the sequence of DNA, you can alter or stop the protein from being produced
• Proteins are the "work horses" of the body, playing essential structural, enzymatic and hormonal roles
• it is therefore essential that exact copies the genetic material (nucleic acids) are made during mitotic cellular division
• In sexually reproducing organisms , the exact replication od genetic material that occurs during mitosis allows for the exchange of alleles between homologous chromosomes during meiosis, which incorporates variation into the species.