Allele-A Genetics Definition. An allele is one of two or more versions of a gene. An individual inherits two alleles for each gene, one from each parent. Credit: Darryl Leja, NHGRI.
Population of Swisher, IA Last official estimated population of Swisher city (Johnson County**, Iowa state) was 932 (year 2014) [1]. This was 0% of total US population and 0.03% of total Iowa state population.
Johnson County is a county located in the U.S. state of Iowa. As of the 2010 census, the population was 130,882 making it the fifth-most populous county in Iowa. The county seat is Iowa City, home of the University of Iowa.