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Cell Nucleus

Genetic lecture 3

Genetic lecture 3

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DNA Methyltransferases<br />

Add methyl groups to DNA<br />

Always at carbon 5 of cytosine<br />

This essentially ‘tags’ regions of DNA<br />

so that they are utilized (transcribed)<br />

differently<br />

This is a reversible process, but DNA<br />

methylation is ‘passed-on” …..<br />

Thursday, January 21, 2010<br />

22

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