The genetic code is the relationship between DNA base sequences and the amino acid sequence in proteins. The genetic code features include: 1  amino acids are encoded by three nucleotides. 2  it is non-overlapping. 3  it has no punctuation (alternatively, the stop codons could be viewed as a period or full stop.).
Norepinephrine, also called noradrenaline, is an organic chemical in the catecholamine family that functions in the human brain and body as a hormone and neurotransmitter.nside the brain norepinephrine functions as a neurotransmitter, and is controlled by a set of mechanisms common to all monoamine neurotransmitters. After synthesis, norepinephrine is transported from the cytosol into synaptic vesicles by the vesicular monoamine transporter (VMAT).
Norepinephrine is a monoamine neurotransmitter. Monoamine neurotransmitters are neurotransmitters and neuromodulators that contain one amino group that is connected to an aromatic ring by a two-carbon chain (-CH 2 -CH 2 -).ll monoamines are derived from aromatic amino acids like phenylalanine, tyrosine, tryptophan, and the thyroid hormones by the action of aromatic amino acid decarboxylase enzymes.