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Table 3 Percentage of E. coli colonies resistant to ampicillin during consecutive transfers*

From: Construction and transformation of a Thermotoga-E. colishuttle vector

Number of transfers pDH10 pKT1
1 96.75 ± 1.30 7.25 ± 5.54
2 95.5 ± 2.50 1.75 ± 1.48
3 90 ± 6.04 0
4 68.5 ± 6.34 -
5 44 ± 11.68 -
6 32.25 ± 15.20 -
  1. *Results of four independent tests.