Examlex
Noncoding segments of DNA vary in composition based on _____.
Cortisol
A steroid hormone produced by the adrenal glands, playing a role in stress response, metabolism, and immune function.
Insulin
A hormone produced by the pancreas that regulates blood sugar levels.
Serotonin
A neurotransmitter in the brain associated with regulating mood, anxiety, and happiness.
Epinephrine
A hormone and neurotransmitter also known as adrenaline, involved in the body's fight-or-flight response, increasing heart rate, and dilating airways.
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