Edexcel Gcse Biology/additional Science - Unit B2: The Components Of Life Page 12

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12
Suggest the purpose of stages 1 and 3 in the DNA
extraction. (2 marks)
stage 1 _________________________________________________
_________________________________________________________
_________________________________________________________
_________________________________________________________
_________________________________________________________
stage 3 _________________________________________________
_________________________________________________________
_________________________________________________________
_________________________________________________________
_________________________________________________________
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