phenotypic variance

Phenotypic variance refers to the differences we observe in traits among individuals of the same species, such as height, color, or behavior. These differences arise from a combination of genetics (the inherited information) and environmental factors (like nutrition, climate, and experiences). For example, two plants of the same species might grow to different heights due to variations in their genetic makeup and the amount of sunlight and water they receive. Understanding phenotypic variance helps scientists study evolution, breeding, and how traits are passed on or influenced by surroundings.