(C) Bar graph showing the percentage of cells isolated from early-iPSCs colonies or outside of the colonies (rest of population) expressing each of the 9 TRs. Data are shown as mean ± SEM of at least two independent experiments. 0.05 < (*) p < 0.1, *p < 0.05, **p < 0.01 by unpaired Student's t-test or Welch's t-test, when appropriate. 