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To avoid the degradation of DNA during DNA extraction, _____________is added to chelate the Mg2+ ions required by the deoxyribonuclease enzyme.
Option: 1
EDTA
Option: 2
Mercury
Option: 3
Ethidium Bromide
Option: 4
Phenol
Answers (1)
In molecular biology, ethylenediaminetetraacetic acid is a typical chelating substance. (EDTA). Protons and metal ions will fight for binding with EDTA. DNAse, an enzyme that cleaves DNA by dissolving its phosphodiester links, is activated by these metal ions.
Option 1 is the correct answer.
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