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<li>Euchromatin - transcriptionally active state - the region where DNA is accessible due to the relaxed state of nucleosome arrangement</li>
<li>Heterochromatin - transcriptionally inactive state - the area where DNA is packed into highly condensed forms that are inaccessible to transcription factors</li>
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<h2>How to regulate Protein Synthesis - Epigenetic inheritance controls the amount of the transcribed mRNA. Thus, protein production is regulated.</h2>
 
<h4>Ex) Alcohol dehydrogenase (ADH) breaks down alcohol in liver cells.</h4>
 
<h4>We could increase the mRNA of <em>ADH</em>&nbsp; and then make ADH more than usual when we drink much&nbsp;</h4>
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