11. In gel electrophoresis of DNA fragments, A. the fragments migrate towards th

Question

11. In gel electrophoresis of DNA fragments, A. the fragments migrate towards the cathode (negative charge). B. the fragments are separated based on their charge differences. C. the fragments are separated on the basis of their sizes. D. the fragments migrate towards the anode (positive charge) because of the positive charge of the bases. E. large fragments migrate more quickly than small fragments. 12. Which of the mutations below do you think would have the greatest effect on the activity of the mutant enzymes? A. Glutamate to lysine B. Lysine to arginine C. Glutamate to aspartate D. Leucine to isoleucine E. Serine to threonine 13. A mutant strain of yeast grew well at 20

Explanation / Answer

A. the fragments migrate towards the cathode (negative charge)

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