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The Transcription Factor Twist Helps Specify Development of the Mesoderm

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The transcription factor Twist helps specify development of the mesoderm in the Drosophila embryo. You wish to identify other genes that Twist (as a transcription factor) switches on or off. You have wild-type embryos available, as well as embryos that are mutant for the Twist gene. Design an experiment using microarrays that could allow you to identify genes switched on or off by the Twist transcription factor.

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To identify genes that are switched on o...

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