From humble beginnings in the solitary study of bean plants by the Austrian friar Gregor Mendel (1822-1884), the science of genetics has come to capture the imagination of our modern world, from the highest levels of science to the most casual cultural references. As we saw in previous articles, two psychologists studied how beliefs about the genetic basis of various conditions (e.g. sexuality, criminality, mental illness, and obesity) influenced people’s view of those conditions.* They showed that when people believe a condition has a genetic basis, they are more sympathetic and less judgmental of that condition. So far so good. But they also showed that belief in a genetic basis led people to believe that the condition was unavoidable. Our genes determine us.
This is just another version of an age-old discussion. Humanity has long wondered whether we are shaped more by our biology (nature) or our environment (nurture). This, in turn, is related to even deeper questions concerning whether our actions are truly free (autonomy), or if something—nature, biology, divinity—constrains us (determinism).
What study reveals is, that in believing that genes unfailingly produce certain conditions, people are accepting biological determinism; they accept that people’s choices about obesity or sexuality, are not free. They cannot help but experience these conditions. This is remarkable given our culture’s rhetoric about freedom and choice. In accepting a genetic explanation for behavior, it may occur to people that they, too, are subject to such genetic reduction.
Why do people so readily accept genetic explanations? As the authors make clear, it is manifestly not because “science” supports such conclusions. Very few of the most important things about us are simply the result of our genes; almost everything about us, from personality to disease, arise from a web of causes.
I believe genetic explanations are so appealing precisely because they seem to offer an explanation. They offer a reason behind otherwise inexplicable and uncontrollable things about us. For while we claim to prize freedom and autonomy, we also deeply want stable foundations for our lives. We are looking for security. But having rejected the rock of God’s character, we look for foundations in science, nature, and biology.
What is fascinating about this “genetic determinism” is that it reveals a willingness to sacrifice freedom in exchange for foundation. People will give up the power of self-determination for the “security” that being determined by their genes offers. In truth, we are caught. We neither like the guilt and shame that come from accepting responsibility for our behaviors nor the self-limiting that results from accepting our biology as determinative.
For the Christian, security and freedom are not opposed. True security is rooted in the goodness of a Creator God. True freedom is found in the call to live out the image of God as manifested in Jesus Christ. We need not sacrifice one for the other.
* Dar-Nimrod, Ilan and Steven J. Heine. “Genetic Essentialism: On the Deceptive Determinism of DNA.” Psychological Bulletin, 117, no. 5 (2011): 800-818.