Figure 3. List of main genes differentially expressed in a growing post-natal mandibular condylar cartilage. Comparison of array-based expression levels among one- to seven-day-old, seven- to 21-day-old, and 21- to 35-day-old groups, showing growth-stage-dependent expression changes. Red: up-regulated (a ratio of 2.0). Green: uniformly regulated. Blue: down-regulated (a ratio of 0.5).