“What exactly are exosomes?” and “What's the sex of testicular DNA?” Gee I dunno, is it DNA from a testicle? Because my guess then is "male". If they mean spermatozoa your guess is as good as mine. I'm going to have to called Life Technologies technical support now, aren't I?
These highly technical. routine, and very funny questions are the kind that Life Technologies Technical Support teams assist hundreds of scientists with their daily. So they made a cute little tune about it, to celebrate their dedicated everyday-heroes-of-science. Sing along people.