Normal cell division is also the basis for asexual reproduction. Only one type of cell is involved, with no input from another individual. Because no new genetic material is introduced, there is no variation in the resulting offspring.
The Polka is a Central European dance and genre of dance music familiar throughout Europe and the Americas.It originated in the middle of the 19th century in Bohemia, now part of the Czech Republic.he polka also migrated to the Nordic countries where it is known by a variety of names in Denmark (galopp, hopsa), Estonia (polka), Finland (pariisipolkka, polkka), Iceland, Norway (galopp, hamborgar, hopsa/hopsar, parisarpolka, polka, polkett, skotsk) and Sweden (polka).
In both instances, the prime contenders for the origin of both the term and the dance are the Poles and the Czechs, counterclaims that are not sufficiently explored even in contemporary works such as Victor Greeneâs recent A Passion for Polka: Old-Time Ethnic Music in America (Berkeley: University of California Press, 1992).