Мать с дочерью пострадали от необычного кирпича в подвале своего дома

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After the budget grocery chain suffered its third legal loss last year, its executive chair, Richard Walker, said on Wednesday that it would draw a line under the dispute.

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Plus reactions worked differently: they used T4 DNA polymerase, an enzyme with strong 3’ to 5’ exonuclease activity, meaning it can chew back the end of a DNA strand. In the presence of only one dNTP, T4 DNA polymerase would degrade each fragment from its 3’ end until it reached a nucleotide complementary to that dNTP, at which point the exonuclease activity would be inhibited. This ensured that all fragments in a given plus reaction ended with the same nucleotide.

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