Answer:
The promoter region/sequence
Explanation:
Promoter sequences/region is where the transcription factors and RNA polymerase must attach before the gene can be transcribed. SO if we mutate this sequence, the transcription factors and RNA polymerase won't recognize it thus would not attach and transcribe the targeted gene.
Option C: B,C,D,E,F
because rocks on the bottom are older than the rocks at the top.
A.
Explanation: Because he learned it in previous years when it was different, now it becomes hard to learn the new information.
