The Advent wreath is a circular garland of evergreen branches representing eternity. On that wreath, five candles are typically arranged. During the season of Advent, one candle on the wreath is lit each Sunday as a part of the Advent services.
Combined DNA Index System. The Combined DNA Index System (CODIS) is the United States national DNA database created and maintained by the Federal Bureau of Investigation.
A codon is the sequence of three bases in the genetic code that codes for an amino acid (or stop signal) in protein synthesis. The three bases bind to the 'anticodon' of three complimentary bases on a t-RNA that carries an amino acid into the growing polypeptide chain during protein synthesis.