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Head of a wild type fruit fly (Drosophila melanogaster) compared to an Antennapedia mutant in which the antennae are replaced by a pair of middle legs.
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Expression of the fushi tarazu gene as detected by in situ hybridization. The messenger RNA forms a pattern of 7 stripes, expressed in every other parasegment of the early Drosophila embryo reflecting the segmental body plan.
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Expression of the engrailed gene in the posterior compartment of every body segment of the Drosophila embryo.
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Antennapedia homeodomain bound to DNA
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Antennapedia homeodomain bound to DNA |

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Structure of the Antennapedia homeodomain DNA complex as determined by nuclear magnetic resonance spectroscopy. DNA (yellow), peptide backbone (magenta), amino acid side chains of the homeodomain (blue).
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Enhancertrap (A 101): Expression of the ß-galactosidase reporter gene in the sensory organs of a wing imaginal disc of a late larva |

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Scanning electronmicrograph of the head of a fruitfly with an additional eye on the antenna induced by targeted expression of the master control gene eyeless |

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Supernumerary eyes on the antenna and wing of a fruitfly induced by expression of eyeless, the master control gene for eye morphogenesis
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Eyes induced on the legs by targeted expression of the twin of eyeless gene
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Award of the Kyoto Prize, The Inamori Foundation |