Fair Labor Standards Act - FLSA. A maintenance worker is hired to work 35 hours at $15/hr. At $525/week, he passes the salary test (his income is greater than $455/week) but, as he cannot exercise discretion or independent judgment and is directly supervised, he is classified as a non-exempt employee.
Although Hox genes contain and are originally named because of the homeobox sequence, not all homeobox-containing genes are Hox genes (other examples include the POU genes and CDX genes). The homeobox encodes for a protein sequence called the homeodomain, which is a DNA-binding domain.
Hox genes are highly conserved across most animal species and are DNA sequences that specify the anterior-posterior axis and segment identity of organisms as they develop. Hox is an abbreviation of homeobox, the name given to the region of DNA of 180 base pairs that codes for a protein domain called homeodomin.