During the Chipotle outbreak, some people were sickened withE. coli, but a DNA profile of the bacterium in their feces showed that it was not the outbreak strain. What conclusion can be drawn fromthis information?a. The person was not sickened by E. coli.b. The person is not part of the outbreak.c. Escherichia coli mutates frequently, making DNA profilingunreliable.d. The person has already begun to recover from the disease.

Bacteria can acquire DNA directly from the environment through: please explain the answer a.Conjugation b.Transduction c.Natural transformation d.All of the above

24) The infectious bursal disease virus strain D78 is a : a. Genus name b. Species name c. Order name d. Family name

When you performed the phage titer experiment you performed several dilutions of the original stock. Which plate was useful? a. the dilution that produces the plate with no visible virus b. the plate with fewer than 25 viral infections of E. coli c. the plate with the most dense virus d. the plate with between 30 and 300 visible viral infections of E. coli

How many different loci does the FBI use for DNA profiling (fingerpriniting)?   A. 10   B. 12   C. 13   D. 23   E. 22

In a series of infection experiments, a researcher discovers that the ID50 value for the infectious bacterium Parasiticum mucoides is 100, and that the ID50 for another infectious bacterium, Donoteatum thisbacterium, is 15,000.  Given these data, a person exposed to 1,000 bacteria of each type would be more likely to be infected by which bacterium? Group of answer choices There is no way to know given the information provided Both infections are equally likely Parasiticum mucoides Donoteatum thisbacterium

In a series of infection experiments, a researcher discovers that the ID50 value for the infectious bacterium Parasiticum mucoides is 2,000, and that the ID50 for another infectious bacterium, Donoteatum thisbacterium, is 150.  Given these data, a person exposed to 1,000 bacteria of each type would be more likely to be infected by which bacterium? There is no way to know given the information provided Both infections are equally likely Donoteatum thisbacterium Parasiticum mucoides

D-amino acids are not coded for by DNA so how do bacteria acquire them? • A. They use a racemase O B. They use bactoprenol • C. They use a transpeptidase © D. They use lysozyme • E. They use a cross linkase

Classify the Rabies virus (a rhabdovirus family member) and HIV-1 with both the Baltimore and genomic structure systems. Compare your results. What conclusions can be made about these two different methods?

If you wanted to use PCR to assess microbial activity, what type of PCR would you use and why?