Topic: Processes of recombinant DNA technology· Biotechnology and Its Applications

What is the criterion for DNA fragments movement on agarose gel during gel electrophoresis ?

1. The smaller the fragment size, the farther it moves

2. Positively charged fragments move to farther end

3. Negatively charged fragments do not move

4. The larger the fragment size, the farther it moves

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Answer: 1. The smaller the fragment size, the farther it moves

Key idea: The gel acts as a sieve.

All DNA fragments are negatively charged and move toward the anode. Smaller fragments pass through the pores more easily and so travel farther. Larger fragments move less. Answer: (1).

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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What is the criterion for DNA fragments movement on agarose gel during gel electrophoresis ?

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