Believe The Genes You’ll Pass On Are Predetermined? Not Quite…Here’s What We Know

We all have a unique genetic code that get passed down to the next generation.

Our genetic sequence affects everything from eye colouring to body shape to intelligence in most children. Because there are only so many combinations of traits with a partner, there are some genes we can be sure we’ll pass on, and some that we can hope wind up as part of our offspring’s DNA.

The study of epigenetics, however, aims to understand the inherited traits that can’t quite be explained by simple DNA sequencing, and it’s wholly fascinating.

One common instance of epigenetic research focuses on the grandchildren of Holocaust survivors. Descendants of Holocaust survivors have different levels of stress hormones, and it may build them prone to anxiety disorders. This indicates intergenerational trauma can be passed down and affect people who haven’t even experienced that trauma themselves.

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These genetic changes may indicate the body trying to adapt to a similar surrounding as their parents. Because genetics is a complicated science, these traits can seem to “skip” generations. For instance, food availability and gender can impact grandchildren whose genetic codes have adapted to allow for food scarcity or unavailability.

Scientists stress that they are just beginning to understand the effects of epigenetics and that trying to create real-world results from this data is a far-off dream.

“If you are looking for it all to be logical and fall into place perfectly, it isn’t going to yet, ” Rachel Yehuda, an epigenetics researcher says.

( via Scientific American)

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