Gel electrophoresis is a technique used to separate DNA fragments (or other macromolecules, such as RNA and proteins) based on their size and charge. Electrophoresis involves running a current through a gel containing the molecules of interest.
I believe it would be Bone Tissue and Connective Tissue
The answer is nucleotides
A because water is collected in clouds from bodies of water than falls back down as rain snow or hail
