Silkie the "SHH" gene, called the ZPA Regulatory Sequence (ZRS). This causes ectopic "SHH" expression in the anterior of the developing limb bud, leading to increased tissue growth and digits. While the feet of the Silkie display polydactyly, the wings have the standard tridactyly (three digit) arrangement. The Japanese Silkie initially develops additional digits in the wing as an embryo, but these are lost prior to hatching. The genetic cause behind Silkie polydactyly differs from those that cause polydactyly in the Dorking chicken breed, which is due to ectopic "FGF4" expression in the AER, with ectopic "SHH" a secondary effect. The
What She Is (Is a Woman in Love) What She Is (Is a Woman in Love) "What She Is (Is a Woman in Love)" is a song written by Bob McDill and Paul Harrison and recorded by American country music artist Earl Thomas Conley. It was released in February 1988 as the lead single from the album, "The Heart of It All". The song was Earl Thomas Conley's fifteenth number one on the country chart. The single went to number one for one week and spent a total of thirteen weeks on the country chart. "What She Is (Is a Woman in Love)" debuted on the U.S. "Billboard"