You would expect a halotolerant microbe to grow best on the 0.5% NaCl plate but possibly grow on the 5% NaCl plate.
Select one:
True
False
True
Halotolerance is the adaptation of living organisms to conditions of high salinity. Halotolerant microbes tolerate high salinity and still have optimal saline environments for their optimal growth.
You would expect a halotolerant microbe to grow best on the 0.5% NaCl plate but possibly...
microbe A 1. Which of these microbes would best represent Staphylococcus aureus? One of these bacteria is E. coli, a Gram negative rod. Which microbe on this plate would best represent the results for E. coli? 3. Which of these microbes can ferment mannitol? microbe microbe C
Which viral plate would you expect to see a lower number of plaques? A viral plate with choloform? Or a viral plate without chloform? Explain your reasoning.
1. On which plate(s) would you expect to find bacteria most like the E. coli on the source plate? Explain. 2. On which plate(s) would you find only genetically transformed bacterial cells? Why? 3. What is the purpose of the control plates? Explain the difference between the controls and why each one is necessary. 4. Why would one compare the -DNA/+Amp and DNA/+Amp plates?
Given the data below, how many grams of NaCl would you expect to be formed in the reaction of excess HCl with the Na,CO3? The molar mass of sodium carbonate is 105.989 g/mol and the molar mass of sodium chloride is 58.443 g/mol. 83.000 mass of empty beaker (g) mass of beaker plus Na2CO3 (9) mass of Na2CO3 (9) 85.250 2.250 Select one: O a. 2.481 g O b. 3.308 g O c.4.962 g O d. 1.241 g You added...
.1)a) Why was it important that the –pGLO bacteria were found growing on the LB plate? Why would their absence create problems in interpreting our results? b) What two conclusions (one per plate) should you draw from the observation that –pGLO bacteria did not grow on the LB/amp plate, but that some +pGLO bacteria did? c). Why did we observe bacteria colonies that glowed under UV light when we inoculated +pGLO bacteria on an LB/amp/ara plate, but not when we...
Select the single best answer. Which of the following elements would you expect to be least metallic? Se Zn Ge
Select the single best answer. Which of the following elements would you expect to be least metallic? o Se o Zn o Ge
3. What effect would you expect the addition of methanol and NaCl to have on (a) cationic, and (b) non-ionic surfactants?
2) You are presented with an unknown that possibly has Ag-, Bi-, Sn+, Zn2+, Co2+ and Na'. You divide the solution into three equal volumes, labeling one "A," one "B," and one "C." To "A" you add 6 M HCl and do not observe any precipitate forming. In tube B, you add 6 M HCl until the pH is 0.5 then add thioacetamide and heat the solution in a hot water bath for seven minutes, eventually observing a black precipitate....
2- Choose the best micropipette from the following to withdraw 110µl more accurately? 0.5-10 µl 10-100 µl 20-200 µl 100-1000 µl 3- When you want to pull liquid using a micropipette, you must hold it vertically and pull from the surface of the liquid. (True/ False) 4- Mention one way for AIDS transmission. 5- Positive result in ELISA is detected when the wells color change from colorless into colored . (True/False).