The Taft-Hartley Act was the first major revision to the Wagner Act, and after much resistance from labor leaders and a veto from President Harry S. Truman, was passed on June 23, 1947. The Taft-Hartley Act provides for the following:
The homeodomain is the part of the protein that attaches (binds) to specific regulatory regions of the target genes. Genes in the homeobox family are involved in a wide range of critical activities during development.n humans, the homeobox gene family contains an estimated 235 functional genes and 65 pseudogenes (structurally similar genes that do not provide instructions for making proteins).
Similarly, mutations in the Hox genes can result in body parts and limbs in the wrong place along the body. Like a play director, the Hox genes do not act in the play or participate in limb formation themselves. The protein product of each Hox gene is a transcription factor. Each Hox gene contains a well-conserved DNA sequence known as the homeobox. Hox genes are thus a subset of the homeobox transcription factor genes. In many animals, the organization of the Hox genes in the chromosome is the same as the order of their expression along the anterior-posterior axis of the developing animal, and are thus said to display colinearity.