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Lecture14 - “head” factor 4 oskar is a maternal-effect...

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Lecture 14: Genetics of Drosophila Development Nov. 17, 2009 1. What makes Drosophila a good model system for genetic studies? 2. Can you generate a bcd/bcd adult fly? How? 3. Early cytoplasmic transfer experiments hypothesized the presence of morphogens, substances that define cell fate in a dosage dependent manner. What cytoplasmic transfer experiment would suggest that bicoid is the
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Unformatted text preview: “head” factor? 4. oskar is a maternal-effect embryonic lethal mutant knirps is a non-maternal-effect embryonic lethal mutant 1) A female fly lays 25% dead embryos- what is her genotype?- what is the genotype of the male parent? 2) A female fly lays 100% dead embryos- what is her genotype?- what is the genotype of the male parent?...
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