1. A future use of DNA testing is that of phenotypic analysis. 2. We should think of the replicator as having extended phenotypic effects. 3. Humans and other animals have many phenotypic variations in eye color. 4. One study reports that phenotypic forms of PAIS are less decisive. 5. This characteristic has made them vital in research on phenotypic plasticity. 6. This type of phenotypic variability is found throughout the species range. 7. Thus, interfamilial phenotypic variation will be greater than intrafamilial variation. 8. Phenotypic tests assess how various drugs directly perform against particular viral strains.9. Instead, over time, the species wobbles about its phenotypic mean. 10. Substantial phenotypic and genotypic evidence exists to demonstrate heterogeneity within the species.