In gel electrophoresis, the smallest DNA pieces travel

Options

A. longer distances
B. shorter distances
C. moderate distances
D. none of these

Answer

**Step-by-Step Solution:**

1. **Understanding Gel Electrophoresis**: Gel electrophoresis is a laboratory technique used to separate DNA, RNA, or proteins based on their size and shape.

2. **Mechanism of Separation**: In this technique, an electric current is applied to the gel, which causes the charged molecules (like DNA) to move through the gel matrix.

3. **Size and Movement Relationship**: The movement of DNA fragments through the gel is inversely related to their size. Smaller DNA fragments can navigate through the pores of the gel more easily than larger fragments.

4. **Speed of Movement**: Due to their smaller size, the smallest DNA pieces travel faster through the gel compared to larger DNA pieces.

5. **Distance Traveled**: As a result of their speed, the smallest DNA fragments will travel longer distances in the gel compared to larger fragments, which move more slowly and do not travel as far.

6. **Conclusion**: Therefore, in gel electrophoresis, the smallest DNA pieces travel longer distances.

**Final Answer**: The smallest DNA pieces travel longer distances.

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