Ciliate conjugation is a sexual phenomenon that results in genetic recombination and nuclear reorganization within the cell. In most ciliate groups, however, the cells separate after conjugation, and both form new macronuclei from their micronuclei.
Before the bun, hamburgers are said to have been served between two pieces of bread. In fact, a ground beef patty was known as Hamburger steak (first mentioned in an American cookbook in 1891); when this was put between bread or in a bun it was called a Hamburger sandwich.
The âburgerâ is an American short, a nickname, for the âhamburgerâ. Our hamburger started off as Hamburg steak in the late 19thC, courtesy of German immigrants bringing and incorporating their dietary preference from the city of Hamburg, where pounded beef had become a popular entree.