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. Transcription, the first step in transforming DNA into proteins, is mediated by an enzyme named RNA polymerase. It consists of reading a sequence of DNA and transforming it, base by base, into a complementary sequence of RNA.ranscription, the first step in transforming DNA into proteins, is mediated by an enzyme named RNA polymerase. It consists of reading a sequence of DNA and transforming it, base by base, into a complementary sequence of RNA.