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.
RNA silencing or RNA interference (RNAi) is the process by which protein production from a gene is turned off by a small interfering RNA (siRNA). An siRNA is a tiny RNA molecule whose sequence of beads/letters perfectly match a complementary set of beads/letters on a messenger RNA (mRNA).