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Analysis of the SCD (susceptible), LF256 (resistant), and SCD‐r1 (resistant) strains of Helicoverpa armigera. (a) Western blot of cadherin protein. (b) Ligand blot of binding of Cry1Ac to cadherin protein. Both blots show similar bands for LF256 and SCD, and no band (a) or a weaker band (b) for SCD‐r1
