Overlapping gene silencing mechanisms function to epigenetically repress transposable elements (TEs), including chromatin and DNA modification as well as RNAi. TEs are a major component of ...

An element is a substance that cannot be broken down into any other substance. Every element is made up of its own type of atom. This is why the chemical elements are all very different from each ...

A pure substance made from more than one type of element chemically bonded together. Elements bond in fixed ratios and so can be represented by a chemical formula. For example, sodium chloride has the ...