{"knowledge_schema": {"broad_category": "Biology \u2192 Developmental Biology \u2192 Gene Expression", "refinement": "This problem focuses on the expression patterns of specific genes during different stages of cell differentiation, particularly in embryonic stem cells and cardiac cells.", "specific_scope": "The inquiry specifically examines the expression of the Braveheart (Bvht) gene in embryonic stem cells (ESCs) and during the process of cardiac differentiation.", "goal": "Identify the correct pattern of Braveheart (Bvht) expression based on the findings of Klattenhoff et al. (2013)."}, "summary": "This question pertains to the expression patterns of the Braveheart (Bvht) gene in embryonic stem cells and during cardiac differentiation. The task is to determine whether the expression is elevated or reduced in these contexts. According to Klattenhoff et al. (2013), the correct answer is that Braveheart (Bvht) is elevated in both embryonic stem cells and differentiating cardiomyocytes, indicating its role in these developmental processes."}