Based on the results of the Kirby-Bauer test shown below, what can we say about this strain of bacteria? Mark all that are true.

The table below shows the response of our ESKAPE safe relatives to 4 bacteria isolated from a master grid. We do not know the identity or any characteristics of the unknown bacteria. Each safe relative was spread onto a petri dish using aseptic technique. A grid pattern was taped to each plate and the unknown bacteria were patched into one of the squares. If there was no inhibition visible, including with a magnifying lens, the result was listed as -. If there was an inhibition zone between 1 and 10mm in diameter, the result is listed as +. If the inhibition zone was 10mm or greater, the result is listed as ++. In the lab, the MGC instructors plated all 6 of the ESKAPE pathogen safe relatives on LB agar plates. Then we patched Unknown Bacteria 5 from a Master plate onto the safe relative. The results are shown here: METRIC METRIC METRIC 1 B. subtilis S. epidermidis E. coli Complete the final column (Unknown Bacteria 5) of the table by selecting -, +, or ++ using the criteria in the…

Given that antibiotic-resistant strains of bacteria are a concern to the general health of a population, what can be done to prevent their development?

You infect bacteria with two phages during a cis test. This produces a lysate that contains phage particles. Before you can count outcomes, you need to work out the amount of phage to use in subsequent experiments. You start by making two ten- fold serial dilutions of the lysate and then add 1mL of the final diluted lysate to a plate of permissive strain e.coli. You observe 10 plaques. How many phage per mL were present in the original lysate? a. 10 phage/mL o b. 3,300 phage/mL c. 10,000 phage/mL o d. 1,000 phage/mL e. 33 phage/mL

During the process of conjugation between two bacteria, each bacterium transfers some of its DNA into the other bacterium.    True False

What is the bacteriological standard for drinking water in the Philippines?

A colleague is struggling understanding how bacteria can be beneficial to humans. Please discuss two ways how this is possible and provide valid support with examples.

You have isolated a strain of E.coli that is resistant to penicillin,streptomycin,chloramphenicol and tetracycline. You also observe that when you mix this strain with a strain that is sensitive to all four antibiotics, the new strain becomes resistant to streptomycin,penicillin and chloramphenicol but not tetracycline. Explain how this is so?

What is [are] good reason[s] for plating a mixture of bacteria so as to form colonies? Select all that apply. Group of answer choices Count the number of dead and live bacteria in the mixture Count the number of bacteria in the mixture that can grow on the plate Get lots of copies of all the cells in the mixture

Based on the image below of a Kirby-Bauer assay, this bacteria is most susceptible to which antibiotic? Write the letter of the antibiotic below. G. B. E.