Repulsion | The term introduced by Punnett and Bateson (1908) for the condition (phase) of a heterozygote for two linked character-differences in which the two dominant factors were derived one from each parent of the individual, and likewise with the two recessive factors. This condition may be represented as A b - a B, where A/a and B/b represent two pairs of alleles, and the capital letters represent the dominants. The horizontal line separates the contribution from each parent. Cf. coupling. |