Gel electrophoresis separates dna for profiling based on

There's no options provided, but I know the answer. Check it out: Gel electrophoresis separates dna for profiling based on its size. To define the size, scientists use special markers which light the strands. Shorter strands of DNA move quicker than longer ones.

1. protection 2. homeostasis 3. storage4.blood formation5.bone marrow 6.movement