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Nucleation

From Biology-Online Dictionary | Biology-Online Dictionary
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nucleation

(Science: molecular biology) A general term used in polymerisation or assembly reactions where the first steps are energetically less favoured than the continuation of growth. Polymerisation is much faster if a pre formed seed is used to nucleate growth. (e.g. Microtubule growth is nucleated from the microtubule organising centre, although the nature of this nucleation is not known).