How do I compute for an approximate length of one bacteria using the scale bar?

Q: If the first number of the five-digit code is 0, what does this indicate? What bacterial genera are…

A: Bacteria are member of a large group of unicellular microorganisms. It has cells walls, but lack…

Q: Does each colony represent a pure colony? How will you prove your answer? Explain why an isolated…

A: A "colony" is a collection of bacteria, fungus, and other microbes cultivated on a solid agar media…

Q: How could FISH (fluorescence in situ hybridization) be used to determine the relative proportions of…

A: FISH (fluorescence in situ hybridization) is a molecular technique used in cytology studies. They…

Q: you able to distinguish between specific species of bacteria? Why, or why not? Which method for…

A: Staining, culturing, and simple biochemical tests are the traditional methods for distinguishing…

Q: The last time we ran a gel, we used a 1kB molecular weight marker.  Why would we choose to use a…

A: In-gel electrophoresis, the DNA fragments are allowed to run in the gel. In this process, the…

Q: Describe three methods of bacterial count and their advantages

A: A substance's total bacteria count (TBC) is a numerical estimate of the number of microorganisms…

Q: During the Lederberg and Tatum experiment, theresearchers compared the growth of mutant strains…

A: Conjugation is the process by which bacteria transfers its genetic material to the other bacteria by…

Q: You measure your E. coli and find them to have an OD600 of 1.20. You have 50 ml of culture, and you…

A: The growth curve of a bacterial culture can be assessed by measuring its optical density at 600 nm…

Q: Why would it have been possible to utilize N14 in the original bacteria and only allow growing…

A: To build  new F1 bacteria one strand from parent strain and one from the new N15 strain  is required…

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 can you demonstrate natural selection for a bacterial culture growing in batch culture?

A: Natural selection was introduced by Charles Darwin; it is a process by which individual organisms…

Q: 1 mL of a juice sample is taken and diluted in 9 mL culture medium, subsequently, this suspension is…

A: Petroff- Hausser chamber is a chamber used usually for sperm and bacterial count. Number of bacteria…

Q: If you plated 0.1mL of a 1:100 dilution of phage stock onto a plate with an E.coli lawn, what is…

A: In microbiology lab dilution factor represent the solute vs solvent ratio for making the the culture…

Q: What would a yellow green spot on the microarray mean?

A: The microarray is a technique to determine the expression of thousands of genes at the same time.…

Q: Write a comprehensive note on positive supercoiling. Why it is important for archae bacteria

A: DNA supercoiling refers to the over and under-winding of a DNA strand, and is an expression of the…

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: Please create a dichotomous key using these tests to isolate each bacteria strain.

A: The microorganisms distinguished by many methods and gram staining is one of the most important…

Q: what is means cross-contamination in animal cell culture?

A: Biological cells can be grown and developed in laboratory conditions by cell culture techniques. It…

Q: subcellular fractionatio

A: Centrifugation:  Molecules with different densities are separated by rotating them in a solution…

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: Why is  Neurospora a good test organism?

A: Neurospora is a genus of fast-growing orange-red fungus, which lives mainly in tropical and…

Q: When performing phage typing, how would one know whether that bacterium is killed by any of the…

A: Phage typing is a method in which interaction between phage and bacteria is analyzed to detect the…

Q: What is the importance of describing the morphological characteristics of bacterial colonies when…

A: The characteristics of colony that is formed by the bacteria are - colour, opacity, shape,…

Q: What is the role of TMV in biological classicfication and its diagram?

A: Tobacco mosaic virus (TMV) is the first virus to be discovered and has a positive(+)sense…

Q: What colony characteristics can be used for differentiation of bacterial species? As an example,…

A: Colony morphology is the term used to describe the characteristics of an individual colony of…

Q: How do you recognize individual colonies? Describe color, shape, size. Explain how the streak plate…

A: When the bacteria is provided with the needed nutrients and other optimum growth conditions like pH,…

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: Bacillus isolate. Without performing molecular analyses, what morphological and physiological traits…

A: Bacteria occur almost everywhere. Their are hundreds of bacteria  present in a handful of soil. They…

Q: A stock solution of a bacterial strain is diluted 1/10000 to a total volume of 500ul. Then, 50ul of…

A: The mixing of the stock solution with the dilutant liquid is known as dilution. The ratio of stock…

Q: How would you use cytometric cell sorting toevaluate genome sequence variation among a…

A: Flow cytometry is a widely used method for analyzing the expression of cell surface and…

Q: What are the disadvantages of using the mouth in filling a pipette? Why do we use exponential…

A: Introduction: 1. A Pipette is widely used in biochemistry labs as well as in other biology labs,…

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: 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 answers below represents the correct mathematical expression of bacterial growth of…

A: The formula for bacterial growth is as follows: Nt = No × 2n Where Nt= bacterial population at time…

Q: What does it mean if the closest matched organism that is returned from a BLAST search is less than…

A: Basic Local Alignment Search Tool (BLAST) is a bioinformatics tool. This is a method of comparing…

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: 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: Why are macroscopic methods such as motility agar and colonial morphologic examination useful for…

A: Bacteria refers to a single-celled organism that exists in different environments. They are…

Q: Describe a dichotomous key that could be used to identify a bacterium

A: Introduction: A dichotomous key is a tool that aids in identifying natural entities like microbes,…

Q: Why do we use an Electron Scanning Microscope to see bacteriophages over other microscopes?

A: Microscopes are laboratory and scientific instrument that are used to enlarge objects and specimens…

Q: How would you simply explain FISH (Fluorescence in situ Hybridization)?

A: Molecular cytogenetics is a field of study that combines both molecular biology and cytogenetics.…

Q: How Web site, Webcutter are used for generating restriction maps ?

A: Constructing some long-range restriction maps are dependent on making the use of restriction…

Q: How do I create a bar graph using the hardy Weinberg data provided but in the bar graph format on…

A: According to Hardy Weinberg principle- p2+q2+ 2pq=1 and p+q=1 p= frequency of the dominant allele in…

Q: Explain, in your own words, why it is important to perform serial dilution when trying to quantify…

A: Serial dilution is type of dilution used in field of microbiology to identify the cell count.

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…

Modes of Nutrition

It is a biological process of providing or obtaining food that is necessary for growth and health. It includes many physiological processes - absorption, ingestion, assimilation, catabolism, excretion, etc. In biology, the science that deals with nutrition's physiological and chemical processes are called "nutritional science."