(A) Schematic of the synthetic TALEA transcription network driven by the Hunchback (Hb) promoter, indicating TALEA-binding sites with green circles. (B) Early stage 15 embryos carrying the TALEA synthetic network stained with an antibody against ß-Galactosidase. (C) Quantification of the relative concentration of Ubx based on the distance from synthetic network transcription sites. (D) Schematic of the shavenbaby locus, indicating embryonic cis-regulatory enhancers in boxes. The ventral embryonic enhancers DG3, E3N and 7H are highlighted in magenta, yellow and blue boxes, respectively. (E, G, I, K, M, O, Q) Early stage 15 embryos carrying the reporter constructs DG3-lacZ (E), E3N-lacZ (G, I, K), or 7H-lacZ (M, O, Q) stained with an antibody against ß-Galactosidase, with Ubx-Exd sites altered as indicated. (F, H, J, L, N, P, R) Quantification of the relative concentration of Ubx versus the distance from svb transcription sites. The shaded regions in panels (C, F, H, J, L, N, P, R) indicate the variance. A.U. indicates Arbitrary Units of fluorescence intensity.