1. PCR is the abbreviation for _______________.
2. The special heat-stable DNA polymerase used in PCR is called _______.
3. The purpose of heating the DNA is to __________ the complementary strands.
4. The purpose of cooling the DNA is to allow the DNA primers to __________ to the complementary sequences.
5. The purpose of PCR is to _________ of a specific region of DNA.
6. After 30 cycles of heating and cooling, there can be as many as ________ copies of the target sequence produced from a single starting molecule.