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.
Most cases of pinkeye are caused by: 1  Infections caused by viruses or bacteria. 2  Dry eyes from lack of tears or exposure to wind and sun. 3  Chemicals, fumes, or smoke (chemical conjunctivitis). 4  Allergies.