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Does DNA Determine Sexual Preference?

by Brian Thomas, M.S.

I’m often asked if there really is a “gay gene”—one that predetermines certain people to be homosexuals. From the beginning of creation, God designed men and women to be equal but not interchangeable. He designed marriage to be exclusively heterosexual. Science even supports the Bible’s answer to this important question.

The idea of a gay gene became popular from a misunderstood 1993 study in the journal Science. It reported that some male homosexuals who were related through a maternal line—such as gay sons with gay uncles on their mother’s side—shared some similarities within a large DNA region on the X chromosome.1

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Though some researchers were unable to duplicate those results, a 2014 analysis of a larger group of test subjects found a similar link.2 But the similar sequences did not include a gene, nor did the research support the conclusion that any DNA directly or indirectly determines sexuality. If this DNA determines sexuality, then why does it often look the same in homosexual and heterosexual males? Also, the data show no link between gay and straight women. According to these results, DNA does not cause homosexual behavior. In general, studies confirm that human behaviors are too complicated for just one gene or region of the genome to explain.

The supposed warrior gene illustrates this. …Continue reading.

Learn more about how science confirms the Bible HERE

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Institute for Creation Research

Written by Institute for Creation Research

For over four decades, the Institute for Creation Research has equipped believers with evidence of the Bible's accuracy and authority through scientific research, educational programs, and media presentations, all conducted within a thoroughly biblical framework. icr.org

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