Question

question 8 of 25
the results of gel electrophoresis are shown below, with four different
strands of dna labeled.
which strand of dna is the longest?
a. 3
b. 1
c. 2
d. 4

Explanation:

In gel electrophoresis, DNA strands move towards the positive electrode. Longer DNA strands move slower and stay closer to the negative electrode. Strand 1 is closest to the negative electrode, indicating it is the longest.

Answer:

B. 1