Question

question 15
the dna restriction fragments move from the ______ to the ______ end of the gel when electric current is supplied.
○ negative_negative
○ negative_positive
○ positive_negative
○ positive_positive

Explanation:

DNA has a negative charge due to phosphate groups. In gel electrophoresis, charged molecules move toward the opposite charge when current is applied. So DNA fragments move from the negative end to the positive end.

Answer:

negative_positive