University of Washington
Epigenetics: How It Affects Our Future
Describe the scientific concept (e.g. plate tectonics, quantum mechanics) most important to your world view and explain why it is so critical to your outlook.
For decades, the classic dispute of “nature vs. nurture” in regards to our maturation has dominated the debate about how children develop. Does a specific gene passed on from your parents predispose you to a life of crime? Are children more likely to develop high blood pressure because of their genetic composition, or from their exposure to an unhealthy diet? The world is fascinated with finding the answers to these questions, as they have dramatic implications as to how much free will each of us can hope to maintain. Like many people, I thought that the issue of development boiled down to these two competing forces: the unchangeable traits bestowed upon you by your parents, and the effect of your environment on the person you would become. So for me, the concept of a possible third option, known as epigenetics, was both confusing and strangely exciting.
Epigenetics refers to the modification of an organism’s genetic expression; in other words, it embodies the control over which genes in the genome are actually expressed. Studies performed with older identical twins have shown that even when two people share the exact same genetic sequence, their epigenetic markers, when built up over time, can lead to drastic differences in...
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