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Biology · Principles and Processes in Biotechnology

हिन्दी

In agarose gel electrophoresis, DNA fragments migrate towards the anode because:

  1. DNA molecules are positively charged due to histone proteins
  2. DNA fragments are negatively charged molecules
  3. Agarose gel matrix imparts a positive charge to embedded nucleic acids
  4. Electric field forces neutral molecules toward the positive terminal

Correct answer · Option 2

DNA fragments are negatively charged molecules

Explanation

Since DNA fragments are negatively charged molecules, they can be separated by forcing them to move towards the anode under an electric field.
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