Attachment is a specific binding between viral capsid proteins and specific receptors on the host cellular surface.Learning ObjectivesDifferentiate virus attachment and genome entryKey PointsViral entry is the earliest stage of infection in the viral life cycle, as the virus comes into contact with the host cell and introduces viral material into the cell.
Mendel was lucky. It turns out that the genes he studied were either on different chromosomes and so assorted independently (Chapter 9), or so far apart on the same chromosome that linkage could not be detected (Chapter 10).Symbols for a gene can be drawn on a page to communicate their position on a chromosome.
The cochlea is the part of the inner ear that is responsible for hearing. It is a long conical tube, coiled like a snail shell. Inside the cochlea there is a complex structure called the Corti organ, responsible for capturing the stimuli produced by sound waves. The ear acts as an acoustic shell, which picks up sounds and directs them into the ear canal.