{"knowledge_schema": {"broad_category": "Biology \u2192 Genetics \u2192 Heritability", "refinement": "This problem examines the concept of heritability in the context of breeding experiments, focusing on the differences between broad-sense heritability (H^2) and narrow-sense heritability (h^2).", "specific_scope": "The scenario involves understanding how various genetic and environmental factors can influence heritability estimates in different species, particularly when genetic variance is entirely additive.", "goal": "Identify the factors that could lead to differences in heritability estimates between species, specifically focusing on the relationship between broad-sense and narrow-sense heritability."}, "summary": "This problem explores the concept of heritability in genetics, particularly the differences between broad-sense heritability (H^2) and narrow-sense heritability (h^2) in breeding experiments. The scenario highlights that while H^2 is influenced by both genetic and environmental variances, h^2 is specifically concerned with additive genetic variance. The goal is to determine which factors could account for differences in heritability estimates across species, considering aspects like environmental variance, phenotypic variance estimation, genetic interactions, and dominance variance."}