Q. What is the criterion for DNA fragments movement on agarose gel during gel electrophoresis ?
A) The larger the fragment size, the farther it moves
B) The smaller the fragment size, the farther it moves
C) Positively charged fragments move to farther end
D) Negatively charged fragments do not move
Explanation
[Solution] Agarose acts as a sieve, so smaller fragments move farther. Answer (2).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.