Which critical ion concentration is required | vedclass

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(C) Ribosomes are composed of two subunits: a larger subunit and a smaller subunit. These two subunits remain separate in the cytoplasm when the conce

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Magnesium

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(C) Ribosomes are composed of two subunits: a larger subunit and a smaller subunit. These two subunits remain separate in the cytoplasm when the concentration of $Mg^{2+}$ ions is low. When the concentration of $Mg^{2+}$ ions increases to a critical level,the two subunits associate to form a functional $80S$ (in eukaryotes) or $70S$ (in prokaryotes) ribosome. Therefore,$Mg^{2+}$ ions are essential for the structural integrity and assembly of ribosomal subunits.

Which critical ion concentration is required for the association of the two subunits of a ribosome?

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