What is the purpose of using synthetic membranes in DNA fingerprinting?

What is the purpose of using synthetic membranes in DNA fingerprinting?
  1. To isolate DNA
  2. To digest DNA by restriction endonucleases
  3. To separate DNA fragments by electrophoresis
  4. To transfer separated DNA fragments for hybridisation

Solution

Synthetic membranes such as nitrocellulose or nylon are used to transfer separated DNA fragments for hybridisation with a labelled VNTR probe.

Asked in: NCERT

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