'Substrate induction' diaporamas de présentation

An Ecological Perspective (BIOL 346)

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Biology II

Biology II. Development. ?. ?. Muscle. Intestinal. Blood. Nerve. EGG. Development. How do we go from an egg to an adult? How do cells of one type change or produce cells of another type? How is a cell lineage constrained? How does the genetic code cause these changes?. OUTLINE 2

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OUTLINE 3 Control of Gene Expression in Prokaryotes A. Regulatory proteins B. The operon model C. Examples 1. t

OUTLINE 3 Control of Gene Expression in Prokaryotes A. Regulatory proteins B. The operon model C. Examples 1. the lac operon (substrate induction) 2. the tryp operon (end product repression) 3. the lac operon (positive control). Fig. 18.21. Negative regulation:

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OUTLINE 3 Control of Gene Expression in Prokaryotes A. Regulatory proteins B. The operon model

OUTLINE 3 Control of Gene Expression in Prokaryotes A. Regulatory proteins B. The operon model C. Examples 1. the lac operon (substrate induction) 2. the tryp operon (end product repression) 3. the lac operon (positive control). Fig. 18.21. Negative regulation:

253 views • 11 slides