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Unformatted text preview: segmentation during Drosophila development every segment has an “identity”: 6 head segments, 3 thoracic (T1-T3), 8 abdominal (A1-A8) identity crisis: T3 segment develops like a T2 segment wild type “bithorax mutant” (homozygous ubx null, recessive) wild type dominant Antp mutant phenotype: antennae transformed into legs... because Antp gene is ectopically expressed in developing Interpretation of wild type antennae! gene function is tricky if all you have is a dominant allele… usually gain of function (semi-dominant may also be gain of fu...
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This note was uploaded on 01/16/2012 for the course BICD 100 taught by Professor Nehring during the Fall '08 term at UCSD.

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