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  • bacteria
  • This single cell can then be expanded exponentially to generate a large amount of bacteria, each of which contain copies of the original recombinant molecule. (wikipedia.org)
  • vitro
  • The fundamental difference between the two methods is that molecular cloning involves replication of the DNA in a living microorganism, while PCR replicates DNA in an in vitro solution, free of living cells. (wikipedia.org)
  • replication
  • Examples of the DNA sequences that are difficult to clone are inverted repeats, origins of replication, centromeres and telomeres. (wikipedia.org)