handout 3.24.11(1)

handout 3.24.11(1) - 1 3/24/11 1. Transcription factor (TF)...

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Unformatted text preview: 1 3/24/11 1. Transcription factor (TF) cascade Here, refers to one set of transcription factors, which imposes further refinements on fruit fly segmentation while activating the next set of transcription factors 2. Spatial correlation Here, refers to a direct association between the 5 to 3 order of genes within their linkage group and their anterior-to-posterior location of their expression within the embryo 3. Gene family A set of genes and their proteins with similar structures and functions, because they are derived by gene duplication from the same ancestral gene. The genes and proteins of a family are related to each other in the same sense as brothers and sisters, as they are derived from the same ancestral (parent) gene 4. Spatial/temporal correlation Here, refers to a direct association between the 5 to 3 order of genes within their linkage group and their early-to-late expression during the development of an individual -----------------------------------------------------------------------------------------------------------------------------------------...
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