Final answer:
High blood pressure is considered a multifactorial trait in genetic studies due to its complex interactions between genetic predisposition and environmental factors.
Step-by-step explanation:
High blood pressure, or hypertension, can be considered as a multifactorial trait in a genetic study. This term describes traits that are influenced by multiple genetic and environmental factors. High blood pressure is often the result of the complex interaction between genetic predisposition and lifestyle factors such as diet, stress, and physical activity. Though many specific genes may contribute to minor variations in blood pressure, environmental stressors and behaviors have significant impacts on an individual's blood pressure levels. Hence, hypertension exemplifies a condition where both genetic and non-genetic factors play crucial roles.