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.
Sweeny is located in Brazoria County, which, according to the 2000 Census, was the 18th most populated county in Texas (there are 254 counties in Texas) with a population of 241,767. The population of Sweeny in 1990 was 5,077. In 2000, city officials estimated the population just above 5,000.