Briefly describe the abiogenesis belief and one experiment to disprove it that was not always successful and the breakthrough that explained any previous failures. Explain why for any description of the origin of life on earth abiogenesis has to precede biogenesis.

Q: You are working in the lab with Streptococcus pyogenes and two other bacteria. You streak all three…

A: The basal,  enriched, bacterial growth medium, named the blood agar medium encourages the growth of…

Q: You have a mixed culture of 2 different bacterial species. One of the species is Gram negative…

A: Answer: Gram negative bacilli are those rod shaped bacteria which have thin peptidoglycan layer…

Q: Imagine a microbiologist performed a series of Gram stains but forgot to perform the destain step…

A: Bacteria are prokaryotic organisms that contain cell walls. Bacteria are further divided into…

Q: Which of the following is FALSE about interpreting the results of normal microbial flora experiment?…

A: Beta hemolysis is complete hemolysis . It is characterized by a clear zone surrounding the colonies.…

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A: Introduction: Salmonella typhi is a genus of rod-shaped bacteria that is responsible for typhoid.…

Q: Which of the following is not part of Koch’s Postulates? a. A specific microorganism must be…

A: The ability of the microorganisms to causing disease is demonstrated by Robert Koch. It is developed…

Q: Which of the following is FALSE about interpreting the results of normal microbial flora experiment?…

A: Huge diversity of microbial flora could be found with the skin and mucous membranes of the hosts…

Q: What is the growth rate of the E. coli population?

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A: Yes, Philippines scientist namely Abelardo Aguilar discovered erythromycin from soil bacteria -…

Q: Which of these given statements is inaccurate about bacterial endospores?           Question 12…

A: Endospores are the dormant form of bacteria which allow bacteria to resist the harsh environment. In…

Q: What are the basic differences between the three plating methods? Fill up the following table.…

A: These are the aseptic methods used in laboratories for the growth of micro organisms.

Q: plates normally show a 10-fold decrease in colony number through the dilutions, e.g. 500 on Plate D,…

A: Serial dilution is a process to make culture more concentrated for examination.  This is majorly…

Q: Which of the following is FALSE about interpreting the results of normal microbial flora experiment?…

A: Normal microbial flora: Normal flora includes microorganisms (bacteria, fungi, viruses, and…

Q: Erythromycin, an antibiotic discovered in 1952 from soil bacterium Saccharopolyspora erythraea, was…

A: Microbiology is the branch of biology that deals with study of organisms that are too small to be…

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: Using a diagram similar to those provided, describe how serial dilutions and the Standard Plate…

A: The stepwise dilution of a solution is termed as a serial dilution. Generally, the dilution…

Q: In this activity, you will receive an “unknown” containing two species. The first step in…

A: For identifying unknown samples ,Microbiology students perform a step by step experiments and…

Q: Which of the following is FALSE about interpreting the results of normal microbial flora experiment?…

A: From shortly after birth until death, every human being's skin and mucous membranes are home to a…

Q: How would you enrich for an organism that can use phenol as a carbon source?

A: Enrichment culture media is a type of growth media that is used to obtain the microorganisms of…

Q: Which of the following molecules have been used as a biomarker in studies in microbial ecology? a…

A: All these molecules have been used as biomarkers in microbial ecology. Sterols, d- alanine and…

Q: In Microbiology, are there technologies that can help make bacterial culture and sensitivity done…

A: In microbiology, culture is the process of creating artificial media for microbes in order to grow…

Q: Which of the following statements BEST represents the great plate count anomaly? a The aggregation…

A: A bacterial or microbial culture is the process by which microbes are allowed to multiply in a…

Q: Please match the type of culture to the statement that most accurately describes it to test your…

A: In microbiology, culture media  is the media which is used to multiply the required microbes under…

Q: What are some characteristics of Clostridium difficile that contribute to the pathogenicity of this…

A: Bacteria are microscopic organisms which belong to prokaryote because these are unicellular…

Q: The UWC Biotechnolo class undertook a study to determine the microbiological quality of mince-meat…

A: In-order to calculate the amount of bacteria present in a highly  concentrated stock solution  ( a…

Q: hen we try to study the bacterial flora of the body, soil, water, or just about any environment, e…

A: One drop of bacterial arrangement contains a great many cells. To distinguish an animal varieties,…

Q: Bdellovibrio would be great to use to treat all human pathogens, but it cannot be used as biological…

A: Based on an experiment conducted in 1992 by Jackson and Whiting, Bdellovibrios is a potential agent…

Q: (a) You received three cultures (Escherichia coli, Saccharomyces cereviciae, and Rhizopus oryzae)…

A: PCR is used to amplify a target DNA.When boiling method and Gene releaser were used then the…

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: A medium was inoculated with 5 * 106 cells/ml of Escherichiacoli cells. Following a 1-h lag, the…

A: Growth curves are generally the description of the density of cell populations in liquid culture…

Q: After all the thorough experiments, you were only able to cultivate and study 36 microorganisms.…

A: The three categories of living organisms on this planet are the plants, the animals and the…

Q: BAX vs VIDAS: Two automated methods for detection of pathogenic microbes How are these methods…

A: The detection of the pathogens helps in determining the identification of pathogens, food and…

Q: George Beadle and Edward Tatum studled the common bread mold, Neurospora crassa, in the early 1940s…

A: IntroductionToday, we know that a normal gene provides guidelines for constructing a protein, which…

Q: What is the shape of the bacteria in the pictures under microscope ( Cocci or Bacilli ) and why with…

A: Bacilli and cocci are different shaped bacteria and they named according to their shape . The…

Q: Which of the colonies are leucine auxotrophs? GMSA is the negative control, with no additional…

A: GMSA stands for glucose minimal salts. This media represents minimal media required for growth of…

Q: hich of the following is a risk factor for Legionella spp. colonization and survival and why?

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Q: A colony of spherical bacteria which are in a cluster are classified as:   Question 26 options:…

A: Introduction: Bacterial cells might be discovered arranged differently or existing on their own. The…

Q: Describe the reason why bacterial population in a culture tends to grow slowly under unfavorable…

A:

Q: A microbiologist identifies a bacterium that is capable of degrading cellulose, lignin, chitin,…

A: There are several bacteria present which can degrade several waste material and convert them into…

Q: N. benthamiana will be infiltrated with a solution containing OD600=0.3 of each experimental Agro…

A: Microbiology is the branch of biology that deals with study of organisms that are too small to be…

Q: Briefly describe an irreversible and a reversible hypotheses to explain the loss of morphogenic…

A: Organogenesis and Somatic embryogenesis are two different pathways for Morphogenesis.  Organogenesis…

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

A: Answer Parasiticum mucoides

Q: give the interpretation of implication and the possible explanation of results for fungi(yeast and…

A: Both molds and yeast are types of fungi. Mold grows in the shape of filamentous hyphae that multiply…

Q: One of the following is INCORRECT about Spread plate a-Allow aerobic bacteria to grow b-The sample…

A: The spread plate method is used to count the viable cells.

Q: The generation time of a bacterial culture that produces two generations per hour is: a. Equal to…

A: Growth curves are generally the description of the density of cell populations in liquid culture…

Q: PLEASE answer the 2 with no much explanation Culture media is sterilized after the inoculation of…

A: This questions are related to sterilization in microbiology   Sterilization is a process in which…

Q: Discuss three (3) essential knowledge contributions from Predictive Microbiology employing the…

A: Growth curves are generally the description of the density of cell populations in liquid culture…

Q: In the early part of this century, tropical medicine expert Dr. Richard P. Strong obtained…

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Abiogenesis