Identify the difference between testosterone and estradiol. Select all that apply: CH3 H H Testosterone CH 3 OH HO Testosterone has a methyl group that is not present in estradiol. H3C A double-bonded oxygen in testosterone is changed to a hydroxyl group in estradiol. Estradiol Testosterone has a hydroxyl group that is not present in estradiol. OH Testosterone has hydrogens bonded to carbons on the rings whereas estradiol does not