TLS Online TPP Program

#Question id: 4669


Instead of a TATA box, some eukaryotic genes contain an alternative promoter element called an initiator. Most naturally occurring initiator elements have

#Unit 3. Fundamental Processes
  1. cytosine (C) at the +1 position and an adenine (A) residue at the transcription start site (-1)

  2. Guanine (G) at the +1 position and an adenine (A) residue at the transcription start site (-1)

  3. cytosine (C) at the −1 position and an adenine (A) residue at the transcription start site (+1)

  4. cytosine (C) at the −1 position and an guanine (G) residue at the transcription start site (+1)