Q: How was the process of bacterial transformation discovered?
A: The reception of bare DNA fragments from the external environment and the manifestation of that…
Q: Explain how are the physiological characteristics of bacteria identified using biochemical test?
A: The physiological properties that are used for the identification of bacteria includes the nutrient…
Q: Why do we need to look up values in the charts for each antibiotic?
A: Antibiotics have definitely transformed the lives of countless individuals by rescuing them from…
Q: What conditions may have promoted bacterial growth?
A: There are some conditions that may have promoted bacterial growth. Here we will discuss the factors…
Q: Who discovered the plasmids?
A: Plasmid is an extrachromosomal small DNA molecule present in a cell. Plasmid exists separately from…
Q: What is the difference between complete medium and minimal medium? How are complete media and…
A: Nutritional requirements of bacteria and the culture media are defined by microbiologists. The…
Q: What are Koch's postulates? Discuss the importance of these postulates in the identification of…
A: As per Germ theory of Disease , pathogen ( disease causing agents) are the chief factors behind a…
Q: Why is pure culture and culture collection important in identifying novel species of bacteria?
A: A pure culture is a population of cells or multicellular organisms growing in the absence of other…
Q: What is the purpose of the bacterial capsule? Answer in not more than 3 sentences.
A: Prokaryotic calls contain addition protective layer outside of the bacterial cell wall. It is…
Q: Why each bacterium must be tested separately?
A: Antibiotics are chemical substances that kill or inhibit or prevent the growth of microbes. They are…
Q: What are challenges or difficulties we may encounter for identifying a bacillus cereus microbe ?
A: Bacillus cereus is a gram-positive, facultatively anaerobe, and the rod-shaped bacterium present in…
Q: What difficulties does one encounter when trying to differentiate bacteria on the basis of…
A: Bacteria are differentiated based on many different characteristics such as cell shape, nature of…
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: 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: What tools are used to transfer bacteria
A: Ans - An inoculation loop is used to transfer bacteria for microbiological culture. Petri dish.…
Q: How was Escherichia coli modified to produce indigo?
A: Indigo is a dye used mainly for coloring textiles and is derived from plant materials. With the…
Q: What technique could be used to confirm the presence or absence of plasmids in the donor, recipient…
A: Microbiology is the branch of biology that deals with study of organisms that are too small to be…
Q: What are the advantages and disadvantages of multitest systems for bacterial identification?
A: A multitest system is the combination of multiple biochemical tests useful in identification for the…
Q: What bacteria is gram negative?
A: Bacteria are member of a large group of unicellular microorganism. It has cell walls but lack…
Q: Can the presence and absence of capsules in bacteria be used to identify unknown bacteria? YES OR…
A: Glycocalyx is present external to the cell wall as an outermost covering of bacteria. It protects…
Q: What is the procedure of beta method?
A: Beta-lactamase test is used for the detection of enzyme beta-lactamase. This enzyme provides the…
Q: When using a probe to detect an organism, why is it necessary to have some idea as to the organism’s…
A: DNA is the genetic material in all living organisms. Each organism has a unique DNA sequence. Using…
Q: How many types of bacteria are there?
A: Bacteria is the most important component of the cellular life on Earth and are found everywhere from…
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: How can a suspect bacterium be fingerprinted?
A: DNA fingerprinting is a technique for detecting a high number of minisatellites in the genome at the…
Q: What are other methods of measuring the sensitivity of organisms to antibiotic?
A: An antibiotic is a substance that kills or inhibits the growth of bacteria and other microorganisms,…
Q: When using the blue/ white colony screening method, what do blue colonies represent ?
A: Blue- white screening is used for the identification of recombinant bacteria.
Q: What is the principle of the gel electrophoresis separation technique?
A: Biological techniques are procedures or strategies for studying biological things. Biological…
Q: What is a quantitative isolation in bacterial cultivation and how it is done? Explain.
A: To cultivate and count the bacteriophage, plaque formation in solid agar media is used. Plaques are…
Q: How was Escherichia coli modified to produce a photograph?
A: Bacteria are a group of prokaryotic microscopic single celled organisms. They live in diverse…
Q: What biochemical tests did we use to distinguish staphylococci from streptococci?
A: Staphylococcus and streptococcus both occur in cocci shape and both are gram positive organisms.…
Q: If the bacterium was lysogenized by a bacteriophage that has a virulence gene, determine the kind of…
A: The phenotypic approaches involve identifying bacteria by taking into account their behaviour and…
Q: What is the correct genus and species of your unknown Gram (+) bacterium?
A: Mannitol Salt Agar (MSA) It is used to determine halophilic and can fermenting mannitol ability of…
Q: What is the procedure for methylene blue stain on e.coli?
A: Methylene Blue is a cationic stain, which binds to negatively charged parts of the cells, such as…
Q: Bacterial mutants can be classified on the basis of the method, Which is those methods?
A: Microorganisms undergo mutations under environmental stress that causes sudden heritable changes in…
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: 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: What are the advantages and limitations of studying bacteria by means of the cultural method?
A: Culture methods are used to study bacteria in the field of microbiology. By using this method, we…
Q: How will you check the purity of an isolate?
A: Purity is defined as the absence of impurities in substance or the presence of matter other than…
Q: What is the Fluorochrome staining technique for Mycobacterium
A: Mycobacterium - they are a type of germ. There are different kind of mycobacterium. Still others…
Q: What is micropropagation?
A: Tissue culture technique involves growing cells or tissues in an artificial medium, which is…
Q: What is the purpose of the Ames test? How are his− bacteria used in this test?
A: Ames test is also known as Bacterial reverse mutation test. It is a method to test a chemical…
Q: What technique is used to stain bacteria? Who developed this technique?
A: Microorganisms are such small living organisms that are less than 0.1 mm, and can be seen only under…
Q: If you wanted to study this bacteria and understand what species it is, which of the following…
A: There are millions of Bacteria present throughout world. Among them some are pathogenic and and some…
Q: What is the purpose of using the streak plate method?
A: Solution- Introduction - Streak plate technique is used for the isolation into a pure culture of…
What is the methods used for identifying unknown bacteria?
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