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 A transducing phage contains:

A __________ is a complex _________ that contains many different _________.

H. pylori is able to infect the _______ because it produces the virulence factor ________.

Which technique provides the most information about a bacterial isolate?

Which antibody can cross the placenta?  

Farmers in Quebec voluntarily stopped using cephalosporins (medically important antibiotics) in poultry production early in 2005.  Over the next two years, E. coli (green squares) and Salmonella (blue diamonds) were isolated from retail chicken and tested for cephalosporin (ceftiofur) resistance.  Levels of cephalosporin use in human medicine (gray bars) as well as cephalosporin resistance in human isolates (red X’s) was measured over the same period of time.  What can you conclude from these data?  

Which of the following is most effective against microbes that are inside the cell?

We put our raw chicken legs into MAC broth and incubated the bags at 44oC in order to:

Consider these Kirby-Bauer disc diffusion results. Both discs contain streptomycin. Which disc has a higher concentration of drug?     

Vaccines are available to prevent disease caused by: (Check all that apply)