Picaridin can be used on human skin or clothing to repel mosquitoes, biting flies, ticks, fleas, and chiggers. These products may be pump sprays, liquids, aerosols, or wipes.
Transcription is carried out by a DNA-dependent RNA polymerase that copies the sequence of a DNA strand into RNA. To begin transcribing a gene, the RNA polymerase binds to a sequence of DNA called a promoter and separates the DNA strands.
Reverse transcription PCR (RT-PCR) is a modification of the standard PCR technique that can be used to amplify mRNA. The first step is to convert isolated mRNA to a complementary DNA (cDNA) molecule using an RNA-dependent DNA polymerase (also known as reverse transcriptase) during a process called reverse transcription (RT).