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Subject - Biology:

Basics

MCQ - 143-1627

Question:

Restriction enzymes are used in genetic engineering because they

  1. Can join DNA fragments
  2. Cut DNA at specific base sequence
  3. Cut DNA at variable sites
  4. Cut DNA at specific base sequence

Correct Answer: B

Explanation:

Restriction enzymes are DNA-cutting enzymes found in bacteria (and harvested from them for use). Because they cut within the molecule, they are often called restriction endonucleases. In order to be able to sequence DNA, it is first necessary to cut it into smaller fragments.

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619 MCQ for effective preparation of the test of Basics of Biology section.

Read the MCQ statement: Restriction enzymes are used in genetic engineering because they , keenly and apply the method you have learn through the video lessons for Basics to give the answer. Record your answer and check its correct answer and video explanation for MCQ No. 143-1627.

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