Check out Mark Ptashne's current and previous haircuts:
Mark Ptashne has had various hairstyles in recent years. He became famous as an outstanding molecular biologist and university teacher. However, the American molecular biologist is mostly known for his beautiful sense of fashion and his adorable character. Rumors and gossip about the 84-year old's hairstyle are persistently a focus of attention of celebrity magazines and tabloids. Check out Mark Ptashne's former hairstyles in the image gallery right here: