This page explains complementation tests in genetic research to identify whether mutations affecting similar traits are allelic or non-allelic. It uses examples, such as flower color, to demonstrate t...This page explains complementation tests in genetic research to identify whether mutations affecting similar traits are allelic or non-allelic. It uses examples, such as flower color, to demonstrate that crossing homozygous mutant strains results in wild-type offspring for non-allelic mutations or retains the mutant phenotype for allelic mutations. It highlights that true-breeding, recessive mutations are essential for these tests.