Restriction digest of phage lambda DNA and Agarose gel elektrophoresis - Principle of the experiment

4 important questions on Restriction digest of phage lambda DNA and Agarose gel elektrophoresis - Principle of the experiment

The phage  λ DNA  is subjected to a restriction breakdown or restriction digest. What are the preparation steps?

  1. Prepare a mixture of phage  λ DNA, restriction enzyme(s) and a buffer at which the restriction enzyme is optimally active.
  2. Subject the phage  λ DNA with the restriction enzyme at its optimal temperature.

Why do some enzymes need the addition of Bovine Serum Albumin (BSA)

It is suitable for the stabilization of enzymes during preservation and at in virto reactions for which contaminating nucleases should be absent.

Why are restriction enzymes stored at -20°C ?

They are unstable at a higher temperature
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What is required to obtain an optimal enzymatic activity?

We should have to use a different buffer for each restriction enzyme.

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