Why is ropiness usually observed at the center of the bread? What is the selective agent used in the detection of sporeformers from dried ingredients?
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Why is ropiness usually observed at the center of the bread?
What is the selective agent used in the detection of sporeformers from dried ingredients?
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- Why incidence of dark cutting beef is high during cold and hot temperatures?it's so confusing, can you specify what are they positive for? like Positive for Xanthoproteic test (letters)** Negative for Xanthoproteic test. (letters)** Negative for phenol group (letters)** Has the presence of phenol group. (letters)**What is the major difference between Thayer-Martin and chocolate agar? When would you use Thayer-Martin rather than chocolate agar?
- When developing the zymogram using a destaining solution, a researcher observed wedge shaped bands with protein. What could be the possible reason for such an observation?Why is it necessary to perform a negative stain to visualize capsules?What do you call to the selective agent used in the detection of sporeformers from dried ingredients?
- What is the name of the fungal toxin that inhibits RNA polymerase Il at 1 microgram/mL concentration? O Flavopiridol a-Amanitin O Triptolide DRB (5,6-Dichloro-1-ß-D- ribofuranosylbenzimidazole)Prior to subculture, Tifa used a hemocytometer to count her HepG2 cells cultured on a T-25 flask. After trypsinization, she prepared her cells by mixing 50 µL of the cell suspension with 50 μL of 0.4% trypan blue. Her observation under the microscope is as shown below: 1 (1) (ii) 3 (iii) 2 (iv) 4 Note: Count cells on the four labelled squares. Include cells touching the line on top and left. 18P 06. ¿66 Ⓡ Determine the number of viable and dead cells from her observation. What is the percentage of viability of this culture? Show your calculations in detail. Calculate the concentration of viable cells per mL in the original culture. Show your calculations in detail. Based on your understanding of cell culture, do you think she should proceed with subculture? Justify your answer.What is the difference between Benedict and Barfoid's test?
- You have several different media onto which you inoculated eight strains of yeast (A-H). The media include a rich medium, an unsupplemented minimal medium, and minimal media each supplemented with one vitamin. Of the yeast strains, one is a prototroph and seven are auxotrophs for a vitamin. After overnight incubation, the following results were observed (tan patches represent growth): D plate 1 (A) B DE F GH plate 5 plate 4 plate 6 Which plate contains an unsupplemented minimal medium? [Select] Which plate contains a rich medium? [Select] plate 2 Which strain is a prototroph? [Select] Strain E is an auxotroph for niacin. Which plate reveals this specific auxotrophy? [ Select] plate 3 plate 7 One strain is an auxotroph for both choline and pantothenic acid. Which one is this most likely to be? [Select]0.2 mL of YGM was added to 1.8 mL of 0.2% YGM. What is the % concentration of yeast in this sample?What would happen if an ampicillin reagent is added to an Lysogeny broth agar plate that is below 50 degrees Celsius. What would happen if it was added to an Lysogeny broth agar plate that is 50-55 degrees Celsius? Please draw two plates to demonstrate.