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 the second-fastest-growing county in Iowa, according to U.S. Census Bureau estimates released Thursday. The census data estimate that from 2010 to 2015, Johnson County's population grew by 10.2 percent, or 13,369 residents, bringing the estimated county population to 144,251.