"In The Quarterly Review of Biology, researchers at UC Santa Barbara and Uppsala University in Sweden have concluded through their research that sexual orientation can be decided through epi-marks, which are temporary switches in a fetus’ DNA that exist while in the womb and shortly after birth….“Genes are basically the instruction book, while epi-marks direct how those instructions get carried out. For example, they can determine when, where, and how much of a gene gets expressed.”"

BPA is a widely used endocrine disruptor found in plastics and thermal paper prints

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