Figure 3From: Multiscale mechanobiology: mechanics at the molecular, cellular, and tissue levelsThe stretching of DNA. a, A schematic of pulling dsDNA and ssDNA by AFM. b, Force-extension curves of poly(dA), poly(dT) and λ-phage ssDNA and dsDNA. The curves indicate that transitions occur at 0.6 nm base separation for both dsDNA and poly(dA), but not poly(dT) or λ-phage ssDNA. Adapted from Ref. [41].Back to article page