Listed at the bottom of the page are some recent resources 

We should always be careful with research. In matters of faith, the Word of God is our authority - not the latest research (Col. 3:17; 2 Tim 3:16-17). Research can also be of dubious value because of a hidden agenda or bias of the researcher. 

A classic example of this danger is the case of the search for a Gay Gene. The New York Times, The Wall Street Journal, and Science Magazine all reported that scientists had proven the existence of a "Gay Gene." Newspapers across the nation picked up the story. What most newspapers failed to report was that molecular geneticist Dean Hamer's research did not survive subsequent peer review.

According to Dr. Jeffrey Satinover

"An independent genetic study conducted in Canada in 1989 with research continuing today by four researchers from the University of Western Ontario and Stanford Medical School. This study used 52 pairs of gay siblings from 48 families Hamer’s research used 40 homosexual brother pairs. The study concluded, 'It is unclear why our results are so discrepant from Hamer’s original study. Because our study was larger than that of Hamer et al., we certainly had adequate power to detect a genetic effect as large as was reported in that study. Nonetheless, our data do not support the presence of a gene of large effect influencing sexual orientation at position Xq28.'
In other words, any claim to have found a “gay gene” were overblown if not outright wrong." 

(source: http://www.family.org/fofmag/pp/a0024032.cfm) 

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