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easyMCQNEET (UG) 20172026Biology
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What is the criterion for DNA fragments movement on agarose gel during gel electrophoresis?

  1. A
    The smaller the fragment size, the farther it moves
  2. B
    Positively charged fragments move to farther end
  3. C
    Negatively charged fragments do not move
  4. D
    The larger the fragment size, the farther it moves

Solution & Step-by-step Explanation

DNA is negatively charged and moves towards the positive anode. The agarose gel acts as a sieve; hence, smaller fragments migrate faster and further through the pores than larger ones.

Practice this question

Try it yourself before checking the explanation above.

What is the criterion for DNA fragments movement on agarose gel during gel electrophoresis?
A
The smaller the fragment size, the farther it moves
B
Positively charged fragments move to farther end
C
Negatively charged fragments do not move
D
The larger the fragment size, the farther it moves

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BiotechnologyGel ElectrophoresisDNA Separation

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