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19 June, 23:01

The purpose of adding blue "tracking" dye to the DNA samples is to make it easier to visually track the DNA migration to the positive pole in the electrophoresis chamber. TRUE FALSE

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  1. 19 June, 23:10
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    True.

    Explanation:

    DNA molecule is negatively charged and can move towards the positive pole the electrode. DNA electrophoresis is a technique used for the separation of DNA molecules on the basis of their size.

    The small fragments move faster than the large fragments on the gel. The blue bromophenol dye also known as tracking dye is used for the visualization of DNA molecule and their migration on the agarose gel. The tracking dye is used to lade the samples easily as well.

    Thus, the answer is true.
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