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.
Swain County Population and Races. As of 2010-2014, the total population of Swain County is 14,070, which is 8.50% more than it was in 2000. The population growth rate is much lower than the state average rate of 21.13% and is lower than the national average rate of 11.61%.