'Trp repressor' presentation slideshows

Why is gene expression tightly regulated?

What are the differences between prokaryotes and eukaryotes on the initiation of TRANSCRIPTION and TRANSLATION?. Why is gene expression tightly regulated?. For prokaryotes, it is the way that organisms adapt to the environment. For eukaryotes

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FCH 532 Lecture 17

FCH 532 Lecture 17. Extra Credit Assignment for Friday Mar. 2 DeLisa seminar, 148 Baker, 3:00PM Study guide 8 posted Exam scheduled for Friday, March 9-will cover up to translation (Chapter 32). Amino acid metabolism will be next exam Chapter 31.

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WELCOME

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L1 The lac operon

Section L Regulation of Transcription in Prokaryotes L1 The lac operon L2 The trp operon L3 Transcriptional regulation by alternative s factor. L1 The lac operon. The operon The lactose operon The lac repressor Induction cAMP receptor protein.

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Objectives

Prokaryotic Gene Regulation April 16, 2014 Richard D. Howells, PhD MSB E-643 howells@njms.rutgers.edu. Objectives. During this presentation, you may Continue catching up on needed sleep Understand the process of transcription

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Prokaryotic Gene Regulation

Prokaryotic Gene Regulation. Coordinate regulation of genes involved in similar functions. Types of Control . Operon. Unit of coordinate gene expression Includes structural genes and their adjacent regulatory elements We will consider Lac operon (inducible) Ara operon (inducible)

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L1 The lac operon L2 The trp operon L3 Transcriptional regulation by

Section L: Regulation of transcription in prokaryotes. L1 The lac operon L2 The trp operon L3 Transcriptional regulation by alternative ? factors. L1:The LAC Operon. Operon - what is it? The operon is a unit of gene expression and regulation

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L1 The lac operon L2 The trp operon L3 Transcriptional regulation by

Section L:Regulation of transcription in prokaryotes. Molecular Biology. L1 The lac operon L2 The trp operon L3 Transcriptional regulation by alternative ? factors. Molecular Biology. L1:The LAC Operon. Operon - what is it?

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Controlling gene expression

Controlling gene expression. SBI 3U November 22 nd , 2012. Prokaryotic gene control mechanisms. Gene regulation regulated in response to 2 molecules: -lactose -tryptophan. The LAC OPERON. Lactose : sugar, potential source of energy for prokaryotes

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The trp repressor is made of: DNA RNA Protein None of the above

The trp repressor is made of: DNA RNA Protein None of the above. 2. The trp operator is made of: DNA RNA Protein None of the above. 3 . The lac repressor can bind to: Tryptophan cAMP Allolactose The lac operator Both C and D.

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5.5 - CONTROL MECHANISMS

5.5 - CONTROL MECHANISMS housekeeping genes are always needed, so are constantly transcribed and translated but not all proteins are required at all times ? cells control transcription and translation of genes

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