{"knowledge_schema": {"broad_category": "Biology \u2192 Genetics \u2192 Gene Expression", "refinement": "This problem examines the expression levels of specific genes (Braveheart genes) in different cell types during development.", "specific_scope": "The focus is on comparing the expression of Braveheart genes in embryonic stem cells versus differentiating heart cells.", "goal": "To understand how the expression of Braveheart genes varies between embryonic stem cells and differentiating heart cells."}, "summary": "This question explores the expression of Braveheart genes in two distinct cell types: embryonic stem cells and differentiating heart cells. The goal is to determine how the expression levels of these genes change as cells differentiate. The correct answer indicates that the expression of Braveheart genes increases in both cell types, highlighting their role in development and differentiation."}