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Are Viruses Alive?

Česky: 3D virus chřipky English: 3D model of a...
3D model of an influenza virus. (Photo credit: Wikipedia)

Are viruses alive?

In a sense, viruses are molecular hijackers bent on subverting host defenses, taking over a host cell’s ability to control nucleic acid and protein processing functions, and making copies of themselves to go out and infect more cells. Viruses don’t divide like cells, don’t generate their own energy, and are fully dependent on host cells and their proteins to replicate.

Don’t let this simplicity fool you, viruses have very sophisticated means of taking over cells and turning them into factories for making even more viral copies.However, since they can’t accomplish many of the major of functions of life on their own outside of the host cell it has been debated for many years whether viruses are “alive.” Continue reading Are Viruses Alive?

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