Q) What is a primary function of the skull? 1. to protect the vital organs of the chest cavity
2. to protect the brain from damage and impact
3. to control conscious thoughts
4. to control the function of breathing

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."