Under pharmacist supervision, pharmacy technicians: 1  supply medicines to patients, whether on prescription or over the counter. 2  assemble medicines for prescriptions.
A primer is a short nucleic acid sequence that provides a starting point for DNA synthesis. In living organisms, primers are short strands of RNA. A primer must be synthesized by an enzyme called primase, which is a type of RNA polymerase, before DNA replication can occur.
Once the DNA has been amplified, it is heated so that the two strands separate, and a synthetic primer is added to the mixture. The primer's sequence is complementary to the first piece of target DNA, which means that the primer and the DNA target bind with each other.