]> 2026-07-31T07:52:16+00:00 WBR0332 0 en FGF The fibroblast growth factor (FGF), produced at the apical ectodermal ridge (AER), induces mitosis of the mesoderm and allows for limb lengthening. Sonic hedgehog The sonic hedgehog gene, produced at the base of the limbs, is involved in CNS development. Wnt-7 The wnt-7 gene, produced at apical ectodermal ridge (AER), is involved in the organization along dorso-ventral axis. Homeobox The homeobox (Hox) gene is involved in segmental organization along the cranio-caudal direction. SRY The SRY gene, located on the Y chromosome, is involved in the production of the testis-determining factor. Genetics A researcher inactivates the components of the ectoderm rimming of the distal tip of a limb bud, from a mouse, at an early stage. He finds that only the proximal skeletal segment develops with a complete absence of the middle and the distal segments. Then, he applies beads soaked in recombinant proteins at the tip of the limb buds and observes that normal limb development occurs successfully. Protein is most likely expressed by which of the following genes in the recombinant-soaked beads? A General Principles 2020-10-28T00:12:37Z 2459150.5087616 WBR0332