Polyploidy is the condition in which an organism has extra sets of chromosomes. It can be defined as a chromosomal alteration in which the organism posses more than two complete chromosome sets. Classified as an accident in cell division. Polyploidy is the condition in which an organism has extra sets of chromosomes.
Dubuque [1], founded in 1833, is the oldest city in Iowa. A port on the upper Mississippi River, it is situated along scenic bluffs facing the river, and has its roots in a mining and trading settlement established in the area by Quebec-born entrepreneur Julien Dubuque in 1788.
Iowa's only operating antique carousel is located in the city of Story City. Knoxville's National Sprint Car Hall of Fame and Museum is the only museum in the country dedicated to preserving the history of sprint car racing. Iowa's only fire tower is situated in Yellow River State Forest. Sabula is Iowa's only town on an island. Herbert Hoover, a West Branch native, was the 31st president of the United States and the first one born west of the Mississippi. Mamie Doud Eisenhower's birthplace is located in Boone and includes a restored frame house, complete with summer kitchen and original furniture from the family.