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Developmental expression and induction pattern of D. melanogaster ferritin HCH mRNAs. Autoradiograms of a Northern blot prepared with total RNAs and probed consecutively with three Fer1 HCH-specific probes (A, B, and C; see Fig. 2 for the size and location of the probes) and with rp49. The sizes of the massages detected on the blot are indicated on the right. LIII, third-instar larvae; LP, light pupae; DP, dark pupae; Im, imagoes; +Fe, insects raised on FeCl3-supplemented diet.
