Biochemical Characterization: Biochemical contents of the fetal (fet.) ovine medial condyle (MC), lateral condyle (LC), trochlear groove (TG), and patella (P) are shown in gray. Historical values of biochemical content of juvenile (juv.) ovine cartilage from the same regions, except for pyridinoline content, are shown in translucent blue (A-D,G,H) [19]. Significantly different groups are indicated by labeling with different letters. Juvenile ovine pyridinoline/wet weight (E) and pyridinoline/collagen (F) contents, shown in blue, were calculated in this study. The LC contained the greatest GAG/ wet weight (A). The TG contained the greatest GAG/ DNA (B). The P contained the greatest collagen/wet weight (C). There were no regional differences in collagen/DNA (D), pyridinoline/wet weight (E), pyridinoline/ collagen (F), or water content (G). The MC contained the greatest DNA/wet weight (H). Topographical biochemical data are available in Table 1. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)