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Question: part f viral evolution and lysogeny one hypothesis regarding...

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Part F - Viral Evolution and Lysogeny

One hypothesis regarding the origin of viruses suggests that early viruses may have had primarily latent life cycles and that they served a function by helping to transfer genes from one cell to another. This hypothesis suggests that perhaps the lytic life cycle evolved later to allow the viruses to more rapidly spread from one cell to another. How could the researchers studying the archaeal RNA viruses determine whether those viruses have lytic or latent life cycles?

Choose all of the correct answers.

1. They could examine the genomes that they have assembled to determine whether genes associated with lysogeny were present.

2. They could consider the life cycles of more well-known archaeal viruses, which are rarely lysogenic, and compare the new viruses with known lysogenic archaeal viruses.

3. There is no way to determine the life cycle of the archaeal RNA viruses without observing the viruses causing infection

4.They could examine the genomes of the archaeal RNA viruses to look for evidence of uncoating genes.

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