[[Image:325979 dna150.jpg|thumbnail|150px|left|[[Columbia University]] [[psychiatry]] professors Drs. William Byrne and Bruce Parsons stated: "There is no evidence that at present to substantiate a [[biology|biological]] theory. [T]he appeal of current biological explanations for sexual orientation may derive more from dissatisfaction with the present status of [[psychosocial]] explanations than from a substantiating body of experimental data".]] | [[Image:325979 dna150.jpg|thumbnail|150px|left|[[Columbia University]] [[psychiatry]] professors Drs. William Byrne and Bruce Parsons stated: "There is no evidence that at present to substantiate a [[biology|biological]] theory. [T]he appeal of current biological explanations for sexual orientation may derive more from dissatisfaction with the present status of [[psychosocial]] explanations than from a substantiating body of experimental data".]] |