[[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".]]
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[[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".]]
However, there is no scientific consensus on the subject, and the American Psychological Association's assertion is that:
However, there is no scientific consensus on the subject, and the American Psychological Association's assertion is that: