You would place the baseball into water that has already been measured. Then, find the difference(subtract) between the new water level and the old water level.Hope this helped
Answer : Hydrogen.......:
Where are the choices? What following answers?
Step 1: Isolate the two kinds of DNA.
Step 2: Treat the plasmid and foreign DNA with the same restriction enzyme.
Step 3: Mix the foreign DNA with chopped plasmids.
Step 4: Add DNA ligase.