What 3 things must be done to DNA to get it ready for a gel?

Why do german shepherds shed so much

Explain why the plants cortex would serve as the best food source for animals

The carbon cycle is best defined as a process in which a. carbon changes from inorganic forms to organic forms and back b. carbon is changed into other elements such as oxygen or nitrogen c. carbon is continually created from the sun’s energy by plants d. carbon is consumed and regenerated from other elements such as oxygen and nitrogen