Figure 2. Representative sections of the teeth arising from the transplants of groups I (A,B) and II (C,D) after subrenal culture for 2 wks. (A) Experimental recombinants from group I (E11.5 diastemal epithelium + E10.5 second branchial mesenchyme) formed teeth. (B) Control recombinants from group I (E11.5 molar epithelium + E10.5 second branchial mesenchyme) produced teeth. (C) Experimental transplants from group II (E11.5 diastemal mesenchyme + E10.5 first branchial epithelium) resulted in teeth. (D) Control transplants from group II (E11.5 molar mesenchyme + E10.5 first branchial epithelium) developed into teeth. (AD) Azan dichromic staining. Scale bars: 100 µm (A,C); 200 µm (C,D).