Concept:Heredity provides the potential for development, while environment determines how that potential is realized. Their effects are interdependent, not simply additive.
Explanation:Heredity and environment work together through continuous interaction. Genes set the limits of development, but environment influences which traits are expressed.
The relationship between them is multiplicative, not additive. For example, development is often represented as
Development=heredity×environment. If either factor is zero, development cannot occur.
Neither factor contributes a fixed percentage. The influence varies across different traits and stages of life.
A propensity (tendency) is shaped by heredity, but its actual expression requires a supportive environment. Thus, heredity and environment cannot operate separately.
The relative contributions of genes and environmental factors like peers are not additive—they combine in complex, productive ways where each affects the other.
Answer:Option A: The relative contributions of peers and genes are not additive.