Experimental evidence suggests that the nucleoid is largely composed of DNA, about 60%, with a small amount of RNA and protein. The latter two constituents are likely to be mainly messenger RNA and the transcription factor proteins found regulating the bacterial genome.
An ophthalmologist is a medical doctor (MD) or an osteopathic doctor (DO) who specializes in eye and vision care. Ophthalmologists are trained to perform eye exams, diagnose and treat disease, prescribe medications and perform eye surgery. They also write prescriptions for eyeglasses and contact lenses.
Doctors of Osteopathic Medicine (DOs) are fully licensed physicians who practice in every medical specialtyâ. They provide a full range of services, from prescribing drugs to performing surgery, and they use the latest medical tools. But DOs offer something specialâtheir unique approach to patient careâ. Osteopathic physicians are trained to: Teach patients how to prevent illness and injury by maintaining a healthy lifestyle.