As previously mentioned, Watson and Crick themselves had specific ideas about DNA replication, and these ideas were based on the structure of the DNA molecule. In particular, the duo hypothesized that replication occurs in a semiconservative fashion.
Causes and Types of Eye Infections. Examples of viral, fungal and bacterial eye infections include: 1  Pink eye, or conjunctivitis. 2  Conjunctivitis, also called pink eye, is a common, highly contagious eye infection that often is spread among children in day care centers, classrooms and similar environments.auses and Types of Eye Infections. Examples of viral, fungal and bacterial eye infections include: 1  Pink eye, or conjunctivitis. 2  Conjunctivitis, also called pink eye, is a common, highly contagious eye infection that often is spread among children in day care centers, classrooms and similar environments.
Eye discharge occurs whenever there is excess fluid in the eye. Eye discharge may be clear and watery, like tears, or in the case of infections, it may be thick and opaque. There are many causes of eye discharge, ranging from infections to allergic reactions. Allergic reactions can cause itchy, watery eyes. Both allergies and infections cause pinkeye, or conjunctivitis. Eye discharge associated with infections is usually accompanied by other symptoms including redness (bloodshot appearance), burning, blurred vision, or eye pain. Photophobia (sensitivity to light) can be associated with eye infections.