Fig. 6. Statistics of slb/wnt11 mutant and wild-type mesendodermal progenitor cell adhesion to fibronectin. (A) Detachment force. (B) Detachment work. Data are mean±s.d. The difference between the various conditions becomes more apparent for the detachment work, which takes into account the small unbinding (J and T) events (see Table 2). For 1 second contact time and the RGD experiments, the data sets were compared using the Student's t-test. For 2 and 5 second contact times, wild-type and slb/wnt11 data sets were compared using ANOVA followed by a Bonferroni test. Labels indicate the pairs of data sets with no significant differences (P>0.05). FN, fibronectin; SLB, slb/wnt11; RGD, RGD peptide; WT, wild type.