1. The act of repelling or driving apart, in contrast to attraction. 2. Strong dislike; aversion; repugnance. 3. Coupling phase of genes at linked loci that are borne on opposite chromosomes. See coupling phase. [L. re-pello, pp. -pulsus, to drive back]
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re·pul·sion ri-'pəl-shən n the tendency of some linked genetic characters to be inherited separately because a dominant allele for each character occurs on the same chromosome as a recessive allele of the other compare COUPLING (2)
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re·pul·sion (re-pulґshən) [L. re- back + pellere to drive] 1. the act of driving apart or away; a force which tends to drive two bodies apart. It is the opposite of attraction. 2. in genetics, the occurrence on opposite chromosomes in a double heterozygote of the two mutant alleles of interest. Cf. coupling.Medical dictionary. 2011.