The inactive chromatin is compacted and tightly coiled

The inactive chromatin is compacted and tightly coiled -...

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The inactive chromatin is compacted and tightly coiled, and this  coiling regulates access to the genes. Other levels of gene control can occur during and after transcription.  In transcription, certain segments of DNA can increase and  accelerate the activity of nearby genes.  After transcription has taken place, the mRNA molecule can be 
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Unformatted text preview: altered to regulate gene activity. For example, researchers have found that an mRNA molecule contains many useless bits of RNA that are removed in the production of the final mRNA molecule. These useless bits of nucleic acid are called introns ....
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