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4.8.2: Virus Attachment and Genome Entry - Biology

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.
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14.5: Linked Genes - Biology

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.
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How we hear the sounds

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.
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DNA degradation rate

Usually DNA sample manipulation is realized with an ice box at hand in order to avoid degradation, and also its storage is set at -20ºC. Nevertheless, DNA has been obtained from really ancient samp…
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