A less knowledgeable student volunteer asks you to help them examine their gel.

Question

A less knowledgeable student volunteer asks you to help them examine their gel. Where would expect to find the smallest While volunteering in a research lab last summer, you become an expert on gel electrophoresis. segments of DNA? Select one 0 a. Near the negative electrode, close to the wells. b. Near the top, closest to the negative electrode O c. In the middle of the gel because the segments will stop moving after the first few minutes d. In the wells. e. Near the positive electrode, farthest away from the wells

Explanation / Answer

Answer:

e. Near the positive electrode, farthest away from the wells

Explanation:

Shorter molecules move faster and migrate farther than longer ones because shorter molecules migrate more easily through the pores of the gel. This phenomenon is called sieving. The negative terminal is at the far end, so DNA migrates toward the positively charged anode

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