I’m not sure but I think it’s A or C
C bc the key word is replaced
Answer:
Transcription begins at a gene's promoter, a specific sequence of DNA that acts as a "start" signal for a gene that is to be transcribed. Transcription ends at a sequence of bases that acts as a "stop" signal.
Explanation:
Answer:
it is the amount of soil, sunlight, and the music they listen to
control variables are the elements that are always constant and not changed throughout the experiment.