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Viruses: Complex Molecules Or Simple Life Forms?
Beginning of essay
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Viruses have been defined as "entities whose genomes are elements of
nucleic acid that replicate inside living cells using the cellular synthetic
machinery, and cause the synthesis of specialised elements that can transfer the
genome to other cells." They are stationaryand are unable to grow. B ....
Middle of essay
....ibutes of a living thing. This makes the only real criterion
for life the ability to replicate. Only systems containing nucleic acids are
capable of this phenomenon. With this reasoning, a better definition is the
unit element of a continuous lineage with an individual evolutionary history.
Because of viruses inability to survive when not in a host, they must have
evolved from other forms of life. The origin of viruses is an easy thing to
theorize about so many hypothesese have been made.
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| Number of words: 748 |
Approximate pages: 3 |
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