11. "Fagonia laevis " is a perennial herb of the United States desert southwest. 12. In " Xenopus laevis " it is located within the introns of ribosomal protein S1 13. *High efficiency TALENs enable F0 functional analysis by targeted gene disruption in Xenopus laevis embryos. 14. In Europe, the European White Elm " Ulmus laevis " has received much attention. 15. But is also found in the African clawed frog ( " Xenopus laevis " ). 16. A fifth subunit, activin ? D, has been described in " Xenopus laevis ". 17. One RNAi study with CeCdc14 caused cytokinesis defects, which was consistent with similar work in Xenopus laevis . 18. There was a study that tested methoprene, along with methoprene degradation products, on xenopus laevis larvae. 19. The formation of the AGM region has been best described in non-mammalian vertebrates such as Xenopus laevis . 20. In " Xenopus laevis ", Cyr61 is required for normal gastrulation and modulation of Wnt signaling.