Box plot presentation (median with minimum and maximum bars showing all data points) of Neurogenesis Stage 2 - Progenitor intermediate cell markers (TBR2, MCM2, PAX6), gene expression scores in log2 of RPKM(reads per kilobase of exon model per million mapped reads). Statistical comparisons were made using the Kruskal-Wallis test followed by a post hoc Mann Whitney U test and FDR correction. Adjusted p-values for MWU comparisons represented by, **** ≤0.0001, ***≤0.001, **≤0.01, and ns for non-significant.