Sex Hormones CH3 OH H H HO testosterone estradiol Female hormone has an aromatic ring and one less methyl group than the male hormone. Testosterone is converted to estradiol in the ovaries. > Chapter 25 18 Chapter 25 18 Sex Hormones • Female hormone has an aromatic ring and one less methyl group than the male hormone. • Testosterone is converted to estradiol in the ovaries. => CH3 H HO H H H OH estradiol CH3 H O H H H CH3 OH testosterone