Why is pepsin used for in the washing powder

Pepsin, which is a digestive enzyme that is located in the stomach, is used in washing powders because it is a protease enzyme. It helps to break down proteins and remove protein-based stains. 

When a virus infects a host cell, it uses the cell's machinery to make copies of its own genetic material in a process called replication. finally, during the process of self-assembly, that protein shell and the copies of the virus's genetic material are assembled into new viruses.

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