Question 69
(Multiple Choice)
The image below shows a DNA sequencing gel using the Sanger method. The top of the gel is the anode and the bottom is the cathode. Which band represents the shortest and longest fragments of DNA? 
A) shortest = Z, longest = W
B) shortest = X, longest = Z
C) shortest = W, longest = Y
D) shortest = Y, longest = X
E) shortest = W, longest = Z
Answer