repulsion /ripul″shən/ [L, repellere, to drive away] , 1. the act of repelling, disjoining. 2. a force that separates two bodies or things. 3. (in genetics) the situation in linked inheritance in which the alleles of two or more mutant genes are located on homologous chromosomes so that each chromosome of the pair carries one or more mutant and wild-type genes, which are located close enough to be inherited together. Compare coupling. See also trans configuration.
