The last time we ran a gel, we ran a 1% gel. Why would we choose to run a 3% gel today on the worms

Q: Using the diagram above, answer questions 26-35: 26) To focus on a specimen when you are using the…

A: 26) To focus on a specimen when you are using the scanning power objective lens, you would use the…

Q: 17) What gives Aspergillus sydowii colonies their hairy appearance? a) Hyphae () b) Stipes c)…

A: Aspergillus sydowii is a pathogenic fungus that causes several diseases in humans.   Polymerase…

Q: A culture with approximately 3x104 cells/mL were incubated. After 3 hours, the number of cells had…

A: The number of generations (n) refers to the number of times a cell population got doubled during a…

Q: A student was observing a filament of blue green bacteria under low power (60X). The diameter of the…

A: A. Average length of one cell = 2.4 mm/ 40=0.06 mm Under 60X = 40 cells, each is 0.06 mm in length

Q: You have a culture that has 5 X103 cfu/ml of bacteria in it. You perform a serial dilution by adding…

A: In microbiology and bacteriology, the technique of serial dilution is a fundamental method used to…

Q: You have conducted serial 10-fold dilutions and measured the cfu (colony forming units) of a…

A: Given information CFU for the bacterial sample= 5 colonies volume of the sample= 0.4 ml Dilution=…

Q: Since higher concentration colcemid will result in shorter chromosome, you want to      change your…

A: It is given that: Molar concentration of the stock solution: 10 ug/ml.  Desired dilution…

Q: You perform a Gram staining technique on two bacterial species and observe that one is stained…

A: Gram staining is a technique used to differentiate between two groups of bacteria namely…

Q: You take 10 ml of a stock solution, which is at a concentration of 1000 phage/ml, and dilute it to a…

A: A serial dilution is a laboratory technique that uses a series of consecutive dilution steps to…

Q: You perform a plaque assay with your bacteria and serial dilutions of your bacteriophage,, and then…

A: Serial dilution is a process of making a series of dilution in order to determine the concentration…

Q: Steven is a lab research assistant. He mixed 25 µL of cells with 50 µL of cell culture media in…

A: A Hemocytometer slide is a specially designed glass slide with Neubar's rulings in the central…

Q: How would you grow a streptomycin-resistant strain E. coli bacteria was spread on both agar plates…

A: Bacterial resistance does have the capacity where bacteria will withstand the effects of antibiotics…

Q: If the concentration of phage in the original sample was markedly increased from the concentration…

A: 1. Dilution Series:  - Start with a high dilution, such as 10^-5 or 10^-6, of the original phage…

Q: How will you prevent the occurrence of the bacteria present in the Rapid Strep A Test?

A: Answer:  Rapid Strep A Test (Rapid strep test) is a test used to identify the presence of Strep A…

Q: The process of collecting characteristics of your unknown bacterium can be helped by the use of a…

A: Bacteria refer to single-celled microscopic organisms. They are found to be powerful and complex…

Q: Citing data from the results table, tell which antibiotic is most effective against this type of…

A: Antibiotic zone of inhibition Antibiotics are a class of compounds or chemical that inhibits the…

Q: Why do serial dilution? Does serial dilution make it easier to count bacteria on a spread/streak…

A: Dilution is the process of making a solution weaker or less concentrated.

Q: A scientist transfers 0.1 mL phage stock to a tube containing 9.9 mL tryptic soy broth. She then…

A: The total fold of dilution represents how much the original concentration has been reduced due to…

Q: The following pictures show the results of a Disk Diffusion Assay for different types of bacteria.…

A: Disk diffusion assay is a laboratory test used to determine the effectiveness of antimicrobial…

Q: What is the purpose of making a serial dilution?

A: Given: In microbiology, serial dilutions (log dilutions) are used to reduce the bacterial…

Q: Which of the following experimental techniques was used by Hershey and Chase to establish the…

A: Answer : option 3) Isotope labelling is correct.

Q: Why would you want to limit the number of times you passage a cell culture line?

A: Cell culture is the process through which cells are cultivated under controlled conditions,…

Q: ow do you figure out a number of live cells using flow cytometry results?

A: Flow Cytometry is a technique used to determine and analyze the characteristics of cells using…

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: The wild type bacterium is lac+ amps, leu+, ade+ Mutant I is: lac+ amp r, leu-, ade+ Mutant 2 is:…

A: Following the addition of cells with the designated genotypes and enabling growth to take place,…

Q: 10) With the disk test, what specifically are you looking for to know if a bacteria is susceptible…

A: The disk test is done to find which bacteria is susceptible to which antibiotic. This test is also…

Q: X D A B C 11:32 E MT Sp 24 H K 56% 50 5 Using the diagram above, answer questions 26-35: 26) To…

A: 26) To zero in on an example with the examining power objective focal point, you would utilize the…

Q: In the first step of your phage therapy design process, you isolate the exact Mycobacterium strain…

A: The isolation and identification of bacteria causing infection are prerequisites for the success of…

Q: You plated 1.0 mL of a sample diluted by a factor of 10^-5 and you counted 50 comonies after…

A: The stock concentration of the bacteria can be determined by counting the colonies formed on 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 differential staining technique that proves to be an important diagnostic…

Q: According to these images and your own knowledge, can you make a biological drawing of bacteria in…

A: Yoghurt is a nutrient which is rich in lactobacillus (lactic acid bacteria) . Convert milk into…

Q: Citing the data from your results table tell which antibiotic is the most effective against this…

A: Antibiotic Sensitivity Test is a test used to evaluate to efficacy of particular antibiotic in…

Q: You have several different media onto which you inoculated eight strains of yeast (A-H). The media…

A: Minimal medium (unsupplemented) A minimal medium is a growth medium used for growing microbes and…

Q: What is the difference and compare the light source and path of light of a immunofluorescence…

A: Introduction  : A microscope is a tool that can be used to examine cells and other tiny objects.…

Q: If Microbe A and Microbe B have whole genome similarity of 68%, as determined by DNA-DNA…

A: DNA full form is deoxyribonucleic acid. DNA is the main constituent of the chromosome. It contains…

Q: If you counted 300 colonies on a plate that had a 10-5 dilution of bacteria culture, how many…

A: Introduction  Colonies are groups of microorganisms, such as bacteria or yeast, growing on or within…

Q: During the process of conjugation between two bacteria, each bacterium transfers some of its DNA…

A: Conjugation is a type of horizontal gene transfer in which genes from one bacterium are transferred…

Q: 1 mL of a bacteriophage suspension is mixed with 20 mL of a bacterial culture and 50% of the phages…

A: Given information Volume of bacteriophage = 1ml Volume of bacterial culture= 20 ml Concentration of…

Q: You have a culture of bacteria with an unknown number of bacteria in it. You have at your disposal…

A: Dilutions of microbial cultures or clinical and environmental samples are regularly needed in the…

Q: Using the diagram above, answer questions 26-35: 26) To focus on a specimen when you are using the…

A: To focus on a specimen when you are using the scanning power objective lens, you would use the…

Q: What is [are] good reason[s] for plating a mixture of bacteria so as to form colonies? Select all…

A: A mixture of bacteria is encountered everywhere in nature, in environmental as well as in clinical…

Q: 6- Recombination of different types of cells to form more defined tissue or organ is known as O b)…

A: Cell culture is a technique which involves isolation of cells from plant/animal body. Cell culture…

Q: Which Part Of The Bacteria Actually Gets Stained?

A: The primary goal of staining is to show cytological details that would otherwise go undetected;…

Q: With regard to studying the mechanism of conjugation,what is the purpose of using a U-tube?

A: Plasmids are the two circular chromosomes of bacteria that are exchanged during the conjugation…