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This document is a student assignment on the topic of pleiotropy. It defines pleiotropy as a single gene controlling multiple phenotypic traits. The assignment provides several examples of pleiotropic genes and their effects, including phenylketonuria (PKU), frizzled feathers in chickens, sickle cell anemia, the vestigial gene in fruit flies, deafness and pigmentation in cats, and Marfan syndrome. It concludes by listing references used in the assignment.




























