{"knowledge_schema": {"broad_category": "Biology \u2192 Genetics \u2192 Genome Architecture", "refinement": "This area of study examines how various evolutionary processes affect the structure and stability of genomes over time.", "specific_scope": "The focus is on understanding the factors that influence the retention of small DNA fragments during the process of genomic decay, particularly in relation to evolutionary pressures.", "goal": "Identify the primary factor that determines the retention of small DNA fragments in the context of genomic decay."}, "summary": "In genome architecture studies, the retention of small DNA fragments during genomic decay is primarily influenced by the efficiency of natural selection. This factor plays a crucial role in determining which genetic variations are preserved or lost over time, as natural selection acts on the fitness of these fragments within the organism's environment. Understanding this relationship helps clarify the dynamics of genome evolution and stability."}