Question

Exactly how and when did different groups of viruses originate?​

Answer 1

Viruses may have arisen from mobile genetic elements that gained the ability to move between cells. They may be descendants of previously free-living organisms that adapted a parasitic replication strategy. Perhaps viruses existed before, and led to the evolution of, cellular life.

Answer 2

Answer:

Viruses may have arisen from mobile genetic elements that gained the ability to move between cells. They may be descendants of previously free-living organisms that adapted a parasitic replication strategy. Perhaps viruses existed before, and led to the evolution of, cellular life.$\Large\mathtt{\fcolorbox{lime}{black}{\pink{xxitzcrazygirlxx1}}}$

Explanation:

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