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Bio 260 Unit 2 Questions And Verified Answers

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BIO 260 UNIT 2 QUESTIONS AND VERIFIED ANSWERS

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Which virus is vaccine preventable and may cause paralysis?


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Poliovirus
FUN FACT (President FDR had this, but no one knew for a while because
the press used to be awesome and zoom the cameras way in!)




Molds


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, a furry growth of minute fungal hyphae occurring typically in moist warm
conditions, especially on food or other organic matter.




Cell culture


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Viruses are propagated in cell cultures. These cultures must be developed
and maintained. They come in "continous" or "primary" cultures. cultured
cells grow in the form of monolayer (a single confluent sheet of cells)




AZT


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An anti-retroviral medication used to treat




How is Entamoeba histolytica transmitted and what does it cause?


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-caused by ingesting food or water that has been contaminated with feces

-causes nausea, vomitting, diarrhea, weightloss, dehydration, and bloody
stools (can cause death if untreated)

,What is the genome of the influenza virus? What strains are identified by the H and N
spikes


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- (-)ssRNA (8 seperate RNA segments)

-Know the influenza H and N subtypes (human, swine, equine, and avian)

- The H part is used for attachment and the N part is used for viral exit




What is a bacteriophage and how do Lysogeny and Lysogenic conversions


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Bacteriophage: Most contain dsDNA. parasatizes every known bacterial
species. They often make the bacteria they infect more pathogenic to
humans.


Lysogeny: when cells divide they divide with the temperate phage DNA
inside them. replicating that DNA

Lysogenic conversions: when a bacterium aquires a new trait from it's
temperate phage. may cause the bacterium to become pathogenic to
humans.




In vivo


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, Viral cultivation in lab animals or embryonic bird tissue




Ringworm is caused by which type of organism


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FUNGI!




what are the characteristics of protozoa


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-eukaryotes

-single-cell

-grouped by locomotion

-Have two cell forms
*trophozoite
*cyst




Helminths


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-parasitic worms that are eukaryotes

-multicellular

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