Do you have a question about genes or DNA? Ask Dr. John Satterlee, a scientist with a background in genetics, epigenetics, and neuroscience. He started out as a high school chemistry teacher (everybody’s “favorite” class). Since then he has studied a variety of organisms including plants, worms, flies, yeast, bacteria, ducks, rabbits, and carpenter ants. His current major scientific interest is understanding how exposure to addictive substances can lead to long term changes in brain cell function. In his spare time he likes to hike, kayak, and watch his two teenage children play on their phones.