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.
Transcription is the process by which a cellâs nuclear DNA is transcribed into messenger RNA (mRNA). An enzyme called RNA polymerase starts at the opening sequence of a strand of DNA, called the promoter sequence, and then unwinds the DNA double helix little by little and transcribes that entire strand of DNA into mRNA.