(j) Peak to peak distance in auto-correlation of detrended Venus::HES5 spatial profile corresponding to Apical, Intermediate and Basal regions of spinal cord at E10.5; dataset is different from (h); markers indicate average distance per experiment with a minimum of 3 z-stacks per experiment and 2 repeats (left and right of ventricle) analysed per z-stack; bars indicate mean and SD of 6 independent experiments; Kruskal-Wallis test not significant, p=0.115; distances correspond to 4-5 cells considering the inter-nuclear distance in DV quantified in (h). 