Aiming for on/off switch of genes, Chroma corrals $125M for new wave of medicines November 17, 2021 Auto Bot BioPharma, biopharma nl, Cambridge, gene therapy, investing, Massachusetts, Pharma, Startups 0 Chroma Medicine is developing epigenetic therapies that turn genes on or off. The biotech startup has emerged from stealth mode backed by a $125 million Series A round of funding.