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Gene regulation

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Anna Purna
Anna Purna

Imagine a situation when a cell starts producing enzymes required for metabolism and those required for cell death (apoptosis) at the same time. The cell will be in a confused state and will not know which function to perform first. The needs of the body keep changing with time and cell has to tune itself to perform the desired set of activities. Gene regulation helps a unicellular organism to adapt well to the environment.

Technologie
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Gene regulation
Necessity of Gene Regulation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Gene Regulation Mechanisms in Prokaryotes and Eukaryotes ,[object Object],[object Object]
Gene Regulation in Prokaryotes ,[object Object],[object Object],[object Object]
Control of Transcriptional Initiation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Transcriptional Regulation in E.coli ,[object Object],[object Object],[object Object]
The lac operon ,[object Object],[object Object],[object Object],[object Object],[object Object]
Components of lac Operon ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Structure of a lac operon Image reference - http:// www.emunix.emich.edu/~rwinning/genetics/proreg.htm
In the presence of an inducer that is lactose ,[object Object],[object Object],[object Object],[object Object],Image reference - http:// www.emunix.emich.edu/~rwinning/genetics/proreg.htm
In the absence of an inducer that is lactose ,[object Object],[object Object],Image reference - http:// www.emunix.emich.edu/~rwinning/genetics/proreg.htm
Catabolite Repression ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Inducible and Repressible Operons ,[object Object],[object Object],[object Object],[object Object]
The trp Operon ,[object Object],[object Object],[object Object],[object Object]
Negative control system ,[object Object]
Translation-induced transcriptional attenuation ,[object Object],[object Object],[object Object],[object Object]
Characteristics of the leader region of the mRNA ,[object Object],[object Object],[object Object],[object Object]
Under high levels of Tryptophan ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Under low levels of Tryptophan ,[object Object],[object Object],[object Object],[object Object],[object Object]
Image reference - http://www.ndsu.edu/pubweb/~mcclean/plsc431/prokaryo/prokaryo3.htm
[object Object]

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Gene regulation

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  • 9. Structure of a lac operon Image reference - http:// www.emunix.emich.edu/~rwinning/genetics/proreg.htm
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  • 20. Image reference - http://www.ndsu.edu/pubweb/~mcclean/plsc431/prokaryo/prokaryo3.htm
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