Question

in gel electrophoresis, DNA fragments move across a gel. describe what cause them to move in (2-3) sentences

Answer 1

DNA is negatively charged, so when you use gel electrophoresis the molecules will be move to the positive pole.

Answer 2

DNA is negatively charged. Therefore, when you use gel electrophoresis the molecules will be attracted to the positive pole. Smaller fragments move further than longer fragments.