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Which hormone is NOT synthesized from cholesterol?

  1. Cortisol

  2. DHEA

  3. Insulin

  4. Testosterone

The correct answer is: Insulin

Insulin is not synthesized from cholesterol because it is a peptide hormone, which means it is made up of amino acids and not derived from cholesterol. Cortisol, DHEA, and testosterone are all steroid hormones that are synthesized from cholesterol.