A protein that is said to be denatured means that its tertiary structure is caused to unfold possibly by heat, alkali, acid, or by other chemical or physical means, making the molecule lose its original state and become biologically inactive.
Education and Training Requirements. Individuals interested in becoming a host or hostess should take courses in business, arithmetic, bookkeeping, family and consumer science, and public speaking. Hosts and hostesses should be friendly and outgoing people who can remain calm and courteous during rush periods.
Basic Requirements. The Marshals Service website outlines several basic requirements for candidates to satisfy. Applicants must be U.S. citizens between the ages of 21 and 36, with a valid driver's license. You must be appointed by your 37th birthday, although this requirement may be waived for current federal employees or recruits claiming veteran's preference status.