The term "r gene differential" refers to the differences between alleles of a particular gene. Synonyms for "r gene differential" include allele diversity, genetic variation, and allele heterogeneity. These terms describe the presence of multiple versions of a specific gene within a population, which can play an essential role in evolution and the development of new traits. To study r gene differential, scientists may use techniques such as DNA sequencing and PCR (polymerase chain reaction) to identify and compare different alleles. Understanding r gene differential is crucial in various fields such as medicine, where certain genetic variations may impact the efficacy of drugs.