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.
A neurologist is a medical doctor who treats diseases of the nervous system. This includes disorders of the brain, spinal cord, nerves, and muscles. Dr. Nicholas D Suite, Neurology, answered on behalf of MDLIVE. A neurologist is a medical doctor who looks after patients with problems involving the brain, spinal cord, nerves, and muscles.