Biology 1101 8.26.2015.docx - Biology 1101 Characteristics of Life Reproduction Made of living cells Utilizes energy Evolve Responsive Growth/aging

Biology 1101 8.26.2015.docx - Biology 1101 Characteristics...

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Biology 1101 Characteristics of Life - Reproduction - Made of living cells - Utilizes energy - Evolve - Responsive - Growth/aging - Homeostasis - Movement - Adaptation Are viruses Alive? - Exist in a gray area between living and nonliving - Viruses must replicate within a cell - Virus- genetic information protected by an outer protein - Copies itself once it has invaded a host cell -
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- Research on viruses has focused on how they take over cells or cause disease, with little attention paid to their important role in evolution - viruses add genes to genome which is important to the host - viruses are a potent source of genetic innovation because of their rapid succession, population, and their relation with their host - need to study viruses as a web of life not harmful infectious agents - Central dogma- DNA will make RNA and RNA will make a protein - The first thing a virus does inside a cell is release its genetic information - Viruses can change the evolution of a host if it releases its -
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