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This supports the idea that in embryos from wild-type mothers, dpp H~- mutations cause the transformation of dorsal into ven-tral epidermis. If tissue determined to become dorsal epidermis dies in the dpp rim-null embryos, then one should not see ventral or lateral tissue formed in the double-mutant combination.
DFSP is associated with a re-arrangement of genetic material between chromosomes 17 and 22. It is the result of a new mutation that occurs in the bodyâs cells after conception and is found only in the tumor cells. DFSP is not believed to be a hereditary condition.