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Q: You want to produce a biological agent to kill bacteria that cause disease. Which organism you will…

A: Antibiotics are drugs that help the host's defense mechanism combat infection by preventing…

Q: Nadia collected samples of water from Tasik Harapan, Universiti Sains Malaysia to isolate and…

A: The pH of a solution indicates how acidic or basic it is.

Q: When testing the sensitivity of antibiotics using the Kirby-Bauer method, the Petri Dish with…

A: The Kirby-Bauer test, known as the disk-diffusion method, is the most widely used antibiotic…

Q: What is this test? What coated the bottom of the wells? What were we testing for? How did we know it…

A: The test is ELISA. It is an Enzyme linked Immunosorbant Assay, which is used in many applications.…

Q: Which of the following tools cannot facilitate the visualization of specific intracellular proteins…

A: Radio isotopes can visualise uptake and downtake but not specific intra cellular proteins. DNA…

Q: How could you utilize fluorescence quenching in the different analytical application? Please answer…

A: Fluorescence quenching is a significant method for estimating restricting partiality among ligands…

Q: If I was interpreting the results of Durham tubes, Glucose, Lactose, Sucrose, for Staphylococcus…

A: The broth tubes also contain sugars other than glucose such as lactose and mannitol.  Due to a…

Q: You perform a quadrant streak and isolate a single colony which contains two distinct species of…

A: Quadrant streaking is a technique for microbial inoculation in which a single colony is isolated on…

Q: If the seven-digit code that is tabulated cannot be found in the Profile Determination Table, what…

A: The bacterial identification is important to ensure that the unknown bacterial strain is correctly…

Q: ased on the results of the lab, fill in the following sentences. lace the terms in the appropriate…

A: Given: A table is given to complete the blanks.

Q: What conclusion would you draw if the numbers of bacterial colonies in were the same on the control…

A: Bacteria are unicellular and prokaryotic organisms that live in wide variety of environments. It…

Q: identify the organisms in  an unknown culture. You find that the culture contains two gramnegative…

A: A culture is a medium to grow bacteria and other microorganisms  It provides the bacteria with…

Q: Based on the results of the Kirby-Bauer test shown below, what can we say about this strain of…

A: In Kirby-Bauer testing, bacteria are put on a plate of solid growth medium and wafers of antibiotics…

Q: The techniques for identifying unknown bacteria can be summarized in three key steps, explain in…

A: 1 When gram staining an unknown , the best method is make three smears on the slide . One should be…

Q: Fill in the blanks with appropriate terms, phrases, or clauses to complete the following sentences…

A: Electrophoresis is the process of separation of charged molecules on application of electric field.…

Q: Imagine you made a single kirby bauer plate to determine if a given antibiotic were effective for…

A: Introduction Antibiotics, also called antibacterials, are drugs that kill or slow the growth of…

Q: Use the differential test matrix for this question. You are performing a single unknown. You have…

A: Methyl red test is as also called as MR test. This test is used to determine if the organism…

Q: In the petri dish in Figure 1, the bacteria Esherichia coli (E. coli) was grown and treated with…

A: The disk diffusion technique is used to estimate the susceptibility of the organism to a particular…

Q: hypothetical

A: Isolation and characterization of plant and human pathogenic bacteria from green pepper (Capsicum…

Q: What do the following abbreviations mean: DdDp, RdDp, DdRp, RdRp. Which could be provided by cells?

A: Answer: Introduction: RNA-dependent RNA polymerase (RdRp) is also called as RNA replicase, it is a…

Q: When viewed under a microscope, bacteria appear as red rods after they have been stained. Explain a…

A: Introduction Bacteria Are Minute, Single-celled Organisms That Can Be Found In Large Numbers In All…

Q: Attached below is the study about the effects of handwashing and the effectiveness of soap against…

A: From the figure 8 , Agar plate with bacteria; (A) depicts the results before washing hands . There…

Q: Before viewing a specimen of pigmented bacteria on a slide under the light microscope, which of the…

A: The wet mount is the most basic method of preparation, in which the specimen is placed on the slide…

Q: If you were to analyze three separate colonies from the plate above, would you expect them all to be…

A: Microbes, which are tiny and nearly invisible, have had a huge influence on society since the…

Q: Solve the identity of an unknown bacterial specimen by creating a dichotomous key and using the…

A: A dichotomous key is a classification and identification system for organisms. It's a tool that…

Q: I missed a couple of my labs due to covid and am struggling to teach myself how to do serial…

A: The last two years have been extremely difficult because you can still learn and understand the…

Q: You use a spectrophometer and estimate the concentration of bacteria in a urine sample to be 4.6 x…

A: dilution factor  =10^-6

Q: Discuss the significance of the following processes and what constituent is being determined: a.…

A: Borntrager’s Test: This is a quantitative chemical test for the glycosides in any given sample, this…

Q: Suppose you performed methylene blue staining on E. coli, and K. rhizophila and examined the stained…

A: Methylene blue staining is used to stain the bacteria and observe the morphology under microscope.…

Q: A 10-2 is performed on a culture of bacteria in order to perform viable plate counts. From the…

A: CFU means colony forming unit. It is a measure of viable bacterial or fungal cells. In case of…

Q: Which of the following samples are expected to cause a decrease in absorbance over time when…

A: Ensuring adequate light reaching a detector by using water colloidal solutions in light or X-ray…

Q: Why is E. coli O157:H7 an organism of concern in contaminated foods?  The strain is represented as…

A: E.coli is a prokaryotic organism (bacteria) found in intestine of animals including humans, this…

Q: Supposed you are to work in your experimental research, with the first step of establishing presence…

A: Spectroscopy is the study of the absorption and emission of light and other radiation by matter, as…

Q: MR test result is on the left, VP test result is on the right. a. Please interpret these results.…

A: The breakdown of carbohydrate under anaerobic condition is referred to as fermentation. So the…

Q: You are asked to prepare Murashige & Skoog (MS) medium according to concentration shown the Table.…

A: We are having the concentration  of the ammonium nitrate and potassium nitrate at 1 litre or 1000 ml…

Q: How many bacteria would be in 1ml of the sample if you counted 134 colonies on the 1:1,000 dilution?

A:

Q: What could be possible errors when you incorrectly identify an Unknown organism when using IMViC…

A: IMViC tests are used to identify bacteria from specimens collected from patients in majority of…

Q: If you had a liquid culture containing three different species of bacteria, how could the use of a…

A: A microbiological culture, also known as a microbial culture, is a technique for multiplying…

Q: Which of the following is a reason to run simultaneous tests on known positive and negative controls…

A: A negative control is a control group in an experiment that uses a treatment that  will not produce…

Q: fundamental skills for the microbiology laboratory, examine the quadrant streak and T- streak…

A: Streak plate method is a type of culture method used to isolate a single bacterial colony.

Q: If you started with a bacterial concentration of 2,000,000 bacteria/ml and wanted to plate out 40…

A: In the question it is asked that they want to plate out 40 bacteria, and this count comes under the…

Q: Discuss the functions of the following components in performing gel electrophoresis;…

A: Introduction: The technique of gel electrophoresis is used to separate DNA fragments based on their…

Q: In a series of infection experiments, a researcher discovers that the ID50 value for the infectious…

A: A pathogen is a microorganism that can be a bacteria, virus, protozoan, etc. which has the…

Q: You and a partner conduct the acid-fast staining using the same two bacteria. You know that there…

A: Acid-fast staining is a technique of differential staining that demonstrates to be an important…

Q: You perform the Methyl-Red (right) and Voges-Proskauer test (left). Interpret the results. Which…

A: Voges-Proskauer (VP) is a test used to determine the acetoin in broth culture of bacteria. VP broth…

Q: What are the general rules in grams staining classification of bacteria?

A: In microbiology, Gram staining is the most widely utilised, vital, and widely used differential…

Q: A mistake was made in preparing the arginine decarboxylase test, and mineral oil was NOT added to…

A: * Decarboxylation test is for anaerobic reactions hence mineral oil is to be added to the broth to…

Q: Which of the following is a reason to run simultaneous tests on known positive and negative controls…

A: Biochemical test are different types of test carried out to find the nature and identify unknown…

Q: Column 1 will list ALL characteristics you have identified or tested (include a Gram reaction, shape…

A: There are few important points that should kept in mind : As we know that bacteria are microscopic…

Q: In a serial dilution, you plate 1 ml of a 1/1000 dilution of a bacterial culture and find 25…

A: Serial dilution of the samples is used to calculate the number of microorganisms in a sample.…

Genetic analysis

Genetic analysis refers to the process of studying and analyzing changes in chromosomes or genes using different methods in scientific fields such as genetics and molecular biology. It involves the localization and identification of genes and the detection of inherited or genetic disorders caused by mutations or other abnormal variations in our genome.