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Biology · 2025 · 3 marks
Biotechnology : Principles and ProcessesProcesses of Recombinant DNA Technology3 marksUnderstandshort answer
CBSE 2025 · Region 1 · Set 1 · Q27
Explain the basis on which gel electrophoresis technique works. Write any two ways the products obtained through this technique can be utilised.
Explain the basis on which gel electrophoresis technique works. Write any two ways the products obtained through this technique can be utilised.
Marking-scheme solution
Negatively charged DNA molecules move towards the anode under electric field through a medium or matrix , DNA fragments separate according to their size through sieving effect /Small sized DNA fragments move faster.Resultant DNA fragments can be utilized :
$\displaystyle \star$ For Recombinant DNA technology
$\displaystyle \star$ In DNA fingerprinting, In Polymerase Chain Reaction
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