Homeotic transformationComments
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Homeotic transformation

In homeotic transformation, a normal body part is replaced by a body part which is regularly found in other regions.
AntennapediaAntennapedia mutants of Drosophia have antennae replaced by legs.
UltrabithoraxUltrabithorax (Ubx) mutants of Drosophila have halteres (T3) replaced by wings (T2), imparting four total wings.