'Operon' presentation slideshows

Chapter 18

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Warm-up

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Chapter 16 Control of Gene Expression

Chapter 16 Control of Gene Expression. Topics to discuss. DNA binding proteins Prokaryotic gene regulation Eukaryotic gene regulation. 6 groups of DNA-binding regulatory proteins have been identified. Prokaryotic Gene Regulation. Operons Operons provide coordinate expression.

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Regulation of gene expression prokaryotes eukaryotes gene activity is regulated

Regulation of gene expression prokaryotes eukaryotes gene activity is regulated primarily at the level of transcription. A.lactose operon (lac operon) a.concept of operon b.type of operon inducible operon repress operon. ????? ???? ?? ???

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Chapter 19 Regulation of Gene Expression in Prokaryotes and Their Viruses

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Genetics of Viruses and Bacteria

Genetics of Viruses and Bacteria. Ch 19 & 20. Everything you need to know about viruses. Infected? With What? How can you tell?.

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Terminology

Terminology. Genetics Study of what genes are, how they carry information, how information is expressed, and how genes are replicated Gene Segment of DNA that encodes a functional product, usually a protein. Terminology. Genome All of the genetic material in a cell

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Regulation of gene and cellular activity

Regulation of gene and cellular activity. Regulating Gene Expression. Cells use different mechanisms to sense and respond to conditions within or outside the cell. Regulatory proteins help a cell sense internal changes and alter its gene expression to match. Figure 10.1A. Figure 10.1B and C.

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OPERONS

OPERONS. Chapter 18 Campbell and Reece. E. Coli synthesizes tryptophan . 5 genes clustered together each reaction in pathway catalyzed by specific enzyme one promoter (site where RNA polymerase can attach) serves all 5 genes. E. Coli synthesizes tryptophan.

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Ecclesiastes 3:1, 17

Ecclesiastes 3:1, 17 1 To every thing there is a season, and a time to every purpose under the heaven: 17 I said in mine heart, God shall judge the righteous and the wicked: for there is a time there for every purpose and for every work. Controlling Gene Expression: Bacteria.

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Computer Algebra Approach to Sensitivity Analysis: Application to TRP

Computer Algebra Approach to Sensitivity Analysis: Application to TRP. Modeling Sensitivity Analysis Computer Algebra Approach Tryptophan Application. Use ordinary differential equations to model mass action kinetics

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Gene Regulation

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Gene Regulation

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Regulation of Gene Expression

Regulation of Gene Expression. Chapter 18. Background. Both prokaryotes and eukaryotes alter gene expression in response to their changing environment Efficient bacteria (by chance) produce only the proteins they need. They are selected for by their environment

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Gene Expression and Regulation

Gene Expression and Regulation. Concepts: Gene expression must be carefully be regulated in both prokaryotes and eukaryotes. Prokaryotic cells turn genes on and off by controlling transcription. Eukaryotic cells regulate gene expression at many points.

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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:

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Chapter 10

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Chap. 7 Transcriptional Control of Gene Expression (Part A)

Chap. 7 Transcriptional Control of Gene Expression (Part A). Topics Control of Gene Expression in Bacteria Overview of Eukaryotic Gene Control and RNA Polymerases. Goals Introduce the wide variety of mechanisms used for gene control. Learn the properties of RNA polymerases.

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trpC Gene Annotation in Thiomicrospira crunogena

trpC Gene Annotation in Thiomicrospira crunogena. Phosphoribosylanthranilate Isomerase. 639 bp 212 aa.

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ccsA

Cluster 1. ccl operon. ccs operon. A. ccsA. ccsB. acnA. ccl. orf1. frdA. sucC. frdB. sucD. trx. 12. 13 14. 15 16. 11. 17 18. 3. 4. 5. 7. 8. 9. 10. 6. 1 2. 15-16. 17-18. 3-4. 9-10. 11-12. 1-2. 5-6. 7-8.

259 views • 1 slides