The breakdown into simpler components of any one of a family of organic molecules consisting of a purine or pyrimidine base covalently bonded to a sugar deoxyribose (a deoxyribonucleoside).

Any process involved in the conversion of a pre-microRNA transcript into a mature microRNA molecule.

Dynamic structural changes in centromeric DNA.

Any process that modulates the frequency, rate or extent of the covalent alteration of a histone.

negative regulation of histone modification

Any process that stops, prevents or reduces the frequency, rate or extent of the covalent alteration of a histone.

The chemical reactions involving any one of a family of organic molecules consisting of a pyrimidine base covalently bonded to a sugar deoxyribose (a deoxyribonucleoside).

The directed movement of arsenite into, out of, within or between cells.

positive regulation of histone modification

Any process that activates or increases the frequency, rate or extent of the covalent alteration of a histone.

The directed movement of bicarbonate into, out of, within or between cells.

The breakdown into simpler components of any one of a family of organic molecules consisting of a pyrimidine base covalently bonded to a sugar deoxyribose (a deoxyribonucleoside).

The chemical reactions involving any ribonucleoside, a nucleoside in which purine base is linked to a ribose (beta-D-ribofuranose) molecule.

The formation from simpler components of any purine ribonucleoside, a nucleoside in which purine base is linked to a ribose (beta-D-ribofuranose) molecule.

The directed movement of iodide into, out of, within or between cells.

The directed movement of nitrate into, out of, within or between cells.

The formation from simpler components of a nucleobase, a nitrogenous base that is a constituent of a nucleic acid.

The breakdown into simpler components of a nucleobase, a nitrogenous base that is a constituent of a nucleic acid.

A pathway of mRNA degradation that proceeds through a series of steps that is independent of deadenylation, but requires decapping followed by transcript decay, and that can regulate mRNA stability.