Anaphylaxis: A life-threatening reaction. Peanut allergy is the most common cause of food-induced anaphylaxis, a medical emergency that requires treatment with an epinephrine (adrenaline) injector (EpiPen, Auvi-Q, Twinject) and a trip to the emergency room. Anaphylaxis signs and symptoms can include: Constriction of airways.
Initiation of Transcription in Eukaryotes. Initiation is the first step of eukaryotic transcription and requires RNAP and several transcription factors to proceed.
The initiation of transcription in bacteria begins with the binding of RNA polymerase to the promoter in DNA. Transcription initiation is more complex in eukaryotes, where a group of proteins called transcription factors mediate the binding of RNA polymerase and the initiation of transcription.ranscription is the first stage of the expression of genes into proteins. In transcription, a mRNA (messenger RNA) intermediate is transcribed from one of the strands of the DNA molecule.