AP Biologyeasymcq1 pt
Gel electrophoresis separates DNA fragments by
A.size, with smaller fragments migrating farther
B.charge sign, since DNA is neutral
C.color
D.nucleotide sequence directly
Explanation
Core Concept
The gel sieves fragments; short pieces slip through the matrix fastest toward the positive electrode, producing size-ordered bands.
Correct Answer
Asize, with smaller fragments migrating farther
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