If you’re into science, then DNA is surely in your heart. (I mean, it’s in your heart even if you’re not a science geek, because it’s in every part of your body.) Share your passion for biology with your best friend by giving them one of these DNA and RNA friendship necklaces. The charms represent base molecules that match up perfectly and stick together forever—just like you and your bestie! Each set of two necklaces comes in your choice of Thymine/Adenine, Uracil/Adenine, and Guanine/Cytosine—because nothing means more than telling someone, “We go together like T and A!” Wait, that came out wrong.