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Figure 5


Fig. 5. Ice is required for some normally occurring cell death during embryogenesis. (A-C) TUNEL stains of stage 14 embryos of different genotypes. (A) Wild type; (B) Ice{Delta}1; (C) Ice+2.4; Ice{Delta}1. (D-F) Stage 17 embryos of different genotypes, each of which carries the P[sli-1.0-lacZ] enhancer trap line, which is expressed in midline glia. (D) Wild type, (E) Ice{Delta}1 and (F) Ice+2.4; Ice{Delta}1. Embryos homozygous for Ice{Delta}1 lack maternal and zygotic Ice.