Which set of micropipette tips should be used with a P20 micropipette?

Observe the streak plate with the single yellowish colony separate from the other differently-colored bacterial growth and colonies. This single colony is not on a streak line. What most likely explains its presence on this media?

Pseudomonas aeruginosa was inoculated on the right side of the plate shown, and following incubation and growth, a few drops of oxidase reagent was added. The color change to blue tells us that P. aeruginosa ______.

You inoculate a nitrate broth with a culture of bacteria and incubate it at 37C for 48 hours, producing turbid growth. Upon addition of nitrate reagents A and B, the culture in your test tube turns red. This tells you ______.

Enterococcus faecalis was inoculated on the right side of the plate shown, and following incubation and growth, a few drops of hydrogen peroxide was placed on the bacterial growth. The lack of bubbles tell us that E. faecalis ______.

When Gram staining, what is the purpose of the alcohol/acetone solution?

When setting up PCR of bacterial samples, what is the purpose of wearing gloves?

When using a light microscope at 1,000X, what is the purpose of the immersion oil?

Which set of micropipette tips should be used with a P1000 micropipette?

Shown is a tube held at an angle containing gelatin medium. The medium was inoculated with Staphylococcus aureus, incubated for 48 hours at 23 degrees C, and then refrigerated for 20 minutes. What does this specific result tell us?