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CSS Bio 11 viruses

QuestionAnswer
Viruses are not considered alive. List some reasons why. Non-cellular, cannot grow and reproduce without host organism, do not react with environment,
Although viruses are not considered to be alive, they share many characteristics with living organisms. List some shared characteristics. Reproduce, contain nucleic acid, obtain and use energy.
Because they use host cells to obtain chemicals in order to reproduce, viruses are considered to be Parasites
Most viruses' genetic code is made up of DNA
Retroviruses' genetic code is made up of RNA
Some viruses only infect specific hosts; for example, a virus that only infects bacteria is called a Bacteriophage
Lytic viral infections are also called ________ infections. Virulent
Lysogenic viral infections are also called ________ infections. Latent or dormant
Viruses cause host cells to create ____________ from the virus's DNA rather than the cell's own ___________. mRNA
Once the virus has duplicated in the host cell, it causes the host cell to Lyse
The lytic cycle may last only 20 minutes
The cycle in which a virus inserts its nucleic acid into the DNA of its host cell is called Lysogenic
Once viral DNA is inserted into a host cell, it is known as a Prophage
When exposed to an environmental cue, a dormant or latent virus becomes active, initiating a __________ cycle. Lytic
HIV is an example of what kind of virus? Retrovirus
Created by: musiclover713
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