When foreign DNA and a plasmid are cut by the | vedclass

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(B) $1$. When a foreign $DNA$ fragment and a plasmid vector are cut with the same restriction endonuclease,they produce complementary sticky ends.$2$.

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$DNA$ ligase

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(B) $1$. When a foreign $DNA$ fragment and a plasmid vector are cut with the same restriction endonuclease,they produce complementary sticky ends.$2$. These complementary sticky ends allow the foreign $DNA$ to base-pair with the plasmid vector.$3$. However,the sugar-phosphate backbone of the $DNA$ remains broken at the nicks.$4$. The enzyme $DNA$ ligase is responsible for catalyzing the formation of phosphodiester bonds between the adjacent nucleotides,thereby sealing the nicks and creating a stable recombinant $DNA$ molecule.

When foreign $DNA$ and a plasmid are cut by the same restriction endonuclease,which enzyme is used to join them to form a recombinant plasmid?

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