Small Heritable RNAs Pack a Big Adaptive Punch | The Institute for Creation Research

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In a previous article, I explained how epigenetic mechanisms regulate the structure and function of DNA.1 Specifically, I showed how small molecules can be attached to the DNA itself or added to the histone proteins that the DNA is packaged with. These are known as DNA methylation or histone modifications, respectively. The modifications are monitored and performed dynamically according to the needs of the cell and adaptively in response to environmental changes. Furthermore, these epigenetic modifications can be heritable to give the organism’s offspring an adaptive advantage.

 

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