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Korvikt [17]
3 years ago
15

In gel electrophoresis, DNA fragments move across a gel. What causes them to move?

Chemistry
1 answer:
Fofino [41]3 years ago
4 0
 When placed in an electrical field, the negative charge found in the sugar-phosphate backbone of DNA polymers cause them to migrate towards the positive electrode. 

<span>In gel electrophoresis, electricity is used to separate fragments of DNA based on its length. DNA is place in a porous gel. The pores of the gel restricts the movement of the DNA. It then creates fragments on the DNA because its movement varies on its lengths.  </span>
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