I think the answer is B.
Hopefully, it is right! :)
Answer:
<h2>I looked it up I'll help,Brainliest plz</h2><h2 />
Explanation:
NutritionProteins: building blocks of the body. Excluding water and fat, the human body is made up almost entirely of protein. Protein is the main component of muscles, bones, organs, skin, and nails. Excluding water, muscles are composed of about 80% protein, making this nutrient especially important for athletes.
The DNA migrated to the positive pole of the electrophoresis chamber because the DNA's chemical structure is negative.
As we know, opposite attracts. Negative is attracted to positive, that is why the DNA migrated to the positive pole of the electrophoresis chamber.