A rocket pushes burning A rocket pushes burning gases DOWN which causes the rocket to launch UP. Which law is this? Law 3
Law 1
Low 2

Law 3

Explanation:

Newton's 3rd Law:  

For every action, there is an equal and opposite reaction :D

c.) polymerase chain reaction

- "unlike the original dna fingerprinting method, dna profiling does not use restriction enzymes to cut the dna. instead it uses the polymerase chain reaction (pcr)? to produce many copies of specific str sequences. pcr is an automated procedure that generates lots of copies of a specific sequence of dna."