Answer:a compound present in the body as a neurotransmitter and a precursor of other substances including epinephrine
Explanation:
Transcription is a key regulatory<span> point for many</span>genes<span>. Sets of transcription factor proteins bind to specific DNA sequences in or near a </span>gene<span> and promote or repress its transcription into an RNA. RNA processing.</span>
Answer: experiments
Explanation: ap ex certified
Answer:
A. 90%
Explanation:
Only 10% can transfer from level to level.