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Unformatted text preview: leg 1.7 Developmental signals vary by (1) positional information, (2) concentration gradient (3) transcription factor targets for specific genes and (4) changes in pumps or membrane permeability. Genetic toolkits that determine body plans have been passed down from an ancestor before the Cambrian explosion 1.8 The location of Hox genes on an animal’s chromosome correlates with their pattern of expression in embryos 1.9 Differences in patterns of gene expression correlate with size and morphology differences 1.10 During development, signal secretion and signal transduction provide new tissue with positional information. BIOL13100 Assignments – Water flux in Plants lecture on Wednesday, Ch 37 p. 813-827 Complete your CPR 2 reviews and self-assessment by the deadline! Finish Problem Set 2, and start Problem Set 3...
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This note was uploaded on 02/21/2010 for the course BIO 131 taught by Professor Paleaz during the Spring '10 term at Purdue.
- Spring '10