Question

why DNA copying mechanism creates variation​

Answer 1

Answer:

DNA copy mechanism creates variation because the process of DNA replication takes place through bio-chemical reactions which are highly unreliable for creating an identical copy

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Answer 2

Answer:

DNA copying mechanism is extremely necessary for reproduction as copying of DNA helps in transfer of information or characters from parents offspring .It also generate variations during sexual reproduction. This variation leads to evolution . Each cell then receives an equal number of chromosome or DNA.