The evolution of sex, including meiosis, syngamy, sex determination, sex chromosomes, and gender from organismal, genetic, and developmental perspectives; the origin, maintenance, function, and ubiquity of sex. Prerequisite(s): one of BIOL 2104 or BIOL 2106, and one of BIOL 3609, BIOL 3611, or BIOL 4103.Lectures three hours a week.