As of update 2.1.0, Jurassicraft introduces a new class of Villager who has a chance of generating in villages (especially if there is a Village Lab). The Geneticist is a scientist and inventor by trade, who specializes in genetic extraction and modification. This villager somewhat resembles a Librarian, although with a cleaner lab coat and purple (presumably latex) gloves.
This villager can sell you various Lab Equipment such as Storage Discs and Syringes, or even machines such as the DNA Synthesizer... for a generous price of emeralds of course. You can also sell this person spare supplies you may have lying around.