Mark Ptashne

Mark Ptashne is a prominent American molecular biologist known for his pioneering work in the field of gene regulation. He gained recognition for his research on the lambda phage, which contributed significantly to the understanding of how genes are turned on and off. Ptashne has been a long-time collaborator and friend of James D. Watson, with whom he shared insights into the evolution of molecular biology, and he has played a key role in educating and mentoring future generations of scientists.