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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 ...

Atoms are the building blocks of everything. Atoms can form strong bonds with each other, making molecules. Symbols and formulae Letters from the alphabet are used to represent chemical elements. An ...

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 ...