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Feulgen DNA analysis (a) Unimodal distribution of Feulgen-DNA content expressed as fold DNA content (interrupted lines designate modal positions of diploid 2C), (b) Relation between DNA content and nuclear area (c) Feulgen DNA quantity (pg) in fetal tissues and (d-e) examples of the images used for F-DNA quantification. d fetal femoral bone femur osteoclasts (#5), (e) fetal femoral bone cartilage syncytia (#6), scale bar 5 μm
