This test determines whether the microbe produces indole from the amino acid tryptophan. If indole is produced, it will react with a chemical reagent added after incubation to produce a color change.
Enzyme is a protein molecule and are biological catalysts , Microorganisms are the primary source of enzymes, because they are cultured in large quantities in short span of time and genetic...
02 March 2019 3,006 4 View
Virus Isolation (Indirect Examination) : A. Detection of virus growth in cell cultures 1- Cytopathic effects (CPE) – morphological changes in cultured cells, seen under microscope, characteristic...
31 December 2018 7,576 0 View
The environments in which some prokaryotes grow would kill most other organisms, the major physical factors which affect microbial growth are solutes and water activity, pH, temperature, oxygen...
31 December 2018 6,302 0 View
The preparation of gel was achieved by take of (3) g from gel sephadex G-200 was suspended in 105 ml distilled water and put in water bath at 90 ºC for 5 hours then wash twice with sodium...
31 December 2018 4,688 1 View
The reaction rate of glucose oxidase was determined at different glucose concentration ( 20 , 12.5 , 10 , 5 , 3.33 , 2.5 ) % of glucose under optimum conditions of pH , temperature and incubation...
31 December 2018 6,772 1 View
All living organisms require a source of energy. Organisms that use radiant energy (light) are called phototrophs. Organisms that use (oxidize) an organic form of carbon are called heterotrophs or...
31 December 2018 5,433 0 View
This working was achived in Section of Biology,faculty of Science, Kufa university which contain peroxidase separation and classically of route parameters to work greatest defer of peroxidase...
31 December 2018 9,337 0 View
Azoles : Agents : ketoconazole, fluconazole, itraconazole, voriconazole, posaconazole, multiple topical formulations , The azoles are a broad class of antifungal agents , Echinocandins are a...
31 December 2018 4,973 1 View
I have a response variable called skin yellowness, which I will measure via a scored color chart, whereby 1 is pale yellow and 15 is orange. I'm not sure if this counts as an ordinal variable,...
11 August 2024 4,793 1 View
Hello everyone! I observed in my culture (htert-RPE1 cells) an orange- red particle at the bottom of the dish. It is visible to the naked eye as a very very small red dot. Could it be a...
09 August 2024 2,824 3 View
Hello What should be done to separate and identify organic acids in HPC when their RetTime is the same?Like oxalic acid with Propanoic Acid.or acids that have a very close RetTime.
07 August 2024 8,782 3 View
Dear readers, Thanks for your attention. I am wondering about the health economic problem of quantifying the value of interventions which a) prevent, b) improve symptom profile and c) ultimately...
05 August 2024 3,246 1 View
I have tried several times to isolate lymphocytes from mouse spleen, but all attempts have been unsuccessful. I tried most available protocols. I used different dissociation media (HBSS with Ca...
04 August 2024 9,913 7 View
How Social Media Affects Your Mental Health
04 August 2024 6,961 3 View
Hi, I am isolating monocytes from the bone marrow using the Mouse Monocyte EasySep kit. I want to treat these cells and monitor expression of specific markers over the course of 10 days. I will...
04 August 2024 7,282 2 View
I am currently looking for a questionnaire that relates with my study which is The Effectiveness of Organizational Culture towards employee retention rates
03 August 2024 3,505 6 View
Hello, if you made a transwell assay where you incubate the cells with a nanoparticle-encapsulated drug and considering that in the oposite compartment you'll have both the free and encapsulte...
03 August 2024 2,730 1 View
All plants are green but some of these plants becomes yellow. I did not found any reason. Please help me to find out the real problem.
01 August 2024 589 4 View