HELP PLEASE A. B. What event is indicative of transcription initiation? Telomerase lengthens the telomeres of the DNA The RNA strand begins to be synthesized RNA polymerase binds to the promoter RNA polymerase is removed from the DNA None of these events What are exons? Site where repressor proteins bind Set of genes that are adjacent to one another in the genome and are coordinately controlled Genetic information coding for an amino acid sequence that will form a functional protein Intervening non-coding segments of DNA.