Types of control in Eukaryotes

Types of control in - Types of control in Eukaryotes Gene expression in eukaryotes is controlled by a variety of mechanisms that range from those

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Types of control in Eukaryotes Gene expression in eukaryotes is controlled by a variety of mechanisms that range from those that prevent transcription to those that prevent expression after the protein has been produced. The diagram below shows five kinds of general mechanisms that can be used. Transcriptional - These mechanisms prevent transcription. Posttranscriptional - These mechanisms control or regulate mRNA after it has been produced. Translational - These mechanisms prevent translation. They often involve protein factors needed for translation. Posttranslational - These mechanisms act after the protein has been produced. Transcriptional These mechanisms prevent mRNA from being synthesized. Heterochromatin and Euchromatin Heterochromatin is tightly wound DNA and visible during interphase. It is inactive because DNA cannot be transcribed while it is tightly wound. Euchromatin is not tightly wound. It is active. Acetylation/deacetylation of DNA
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This note was uploaded on 12/15/2011 for the course BIO BSC1010 taught by Professor Gwenhauner during the Fall '10 term at Broward College.

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Types of control in - Types of control in Eukaryotes Gene expression in eukaryotes is controlled by a variety of mechanisms that range from those

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