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ZoologyNEET 2025Tools of recombinant DNA technology

Biotechnology: Principles and Processes

Given below are two statements:

Statement I: The DNA fragments extracted from gel electrophoresis can be used in the construction of recombinant DNA.

Statement II: Smaller-size DNA fragments are observed near the anode while larger fragments are found near the wells in an agarose gel.

In the light of the above statements, choose the most appropriate answer from the options given below:

  1. A.Both Statement I and Statement II are correct✓
  2. B.Both Statement I and Statement II are incorrect
  3. C.Statement I is correct but Statement II is incorrect
  4. D.Statement I is incorrect but Statement II is correct

Solution

DNA bands cut from an agarose gel and eluted are used to build recombinant DNA (I correct). DNA is negative and moves towards the anode; smaller fragments travel farthest, so they lie nearer the anode while large ones stay near the wells (II correct).

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