TLS Online TPP Program

#Question id: 28513


To induce Fgf8 expression by Fgf10, once Fgf8 is made in the surface ectoderm, the surface ectoderm elongates to physically become the AER. which one is the main functions of the AER?

#Unit 5. Developmental Biology
  1. to maintain the activation of both Wnt3a and Tbx4
  2. to tells the surface ectoderm to continue to make Fgf8
  3. to maintain activation of both Wnt2b and Tbx5
  4. to tell the mesenchyme cells directly beneath it to continue making Fgf10