1. Genetic correlations and responses to selection most often exemplify pleiotropy . 2. Selectional pleiotropy is evaluating how a mutation affects fitness. 3. After Plate's definition, mechanisms of pleiotropy . 4. The best evidence for this proposed antagonistic pleiotropy is found in flavivirus infections. 5. These seemingly unrelated changes are a result of pleiotropy . 6. Pleiotropy means one gene that has two or more effects on the phenotype.7. Molecular gene pleiotropy is seeing how many traits are affected by a molecular gene. 8. In antagonistic pleiotropy , one of these effects is beneficial and another is detrimental. 9. Based on antagonistic pleiotropy , Rose expected that this would surely reduce their fertility. 10. This hypothesis shifted future research regarding pleiotropy towards how a single gene can produce various phenotypes.