In which of the following wells was undigeste | vedclass

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(A) In gel electrophoresis,$DNA$ fragments are separated based on their size. Undigested $DNA$ is a large,intact molecule that does not move far from

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$1$

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(A) In gel electrophoresis,$DNA$ fragments are separated based on their size. Undigested $DNA$ is a large,intact molecule that does not move far from the well because it is too large to pass through the pores of the agarose gel matrix efficiently. Looking at the gel image,the lane labeled $1$ shows a single,large band near the well,indicating that the $DNA$ was not cut by restriction enzymes. Lanes $2, 3,$ and $4$ show multiple smaller bands,indicating that the $DNA$ was digested into smaller fragments. Therefore,the undigested $DNA$ was loaded in well $1$.

In which of the following wells was undigested $DNA$ loaded?

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