2. Draw an already streaked agar plate on the circle provided below with bacterial growth. If your goal is to harvest bacterial cells for DNA extraction, where would you likely get your bacterial sample? Encircle the area where you will do your extraction.

Q: What is the purpose of fixing a smear?

A: Smear- a smear is a thin layer of a sample such as bacterial cells or blood spread evenly on a glass…

Q: student needed to transfer bacteria from a broth culture to an agar plate. Below is the step-by-step…

A: 5. The loop was flamed

Q: Why is it important to limit the quantity of cells used to prepare a smear?

A: A thin layer of cells or tissues that are taken from the body of an organism under study which is…

Q: What method is used to transfer plasmid DNA into bacteria? Group of answer choices heat shock…

A: Plasmid  It is an extra chromosomal piece of DNA found is many of the prokaryotes.

Q: There are so many microbes in a single mL of culture, it is very difficult to perform one dilution…

A: The microbiology studies about both the diseases causing microbes and beneficiary microbes, about…

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: 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: 8. Pigment or color (e.g.: opaque, translucid, red, yellow, rose, violet, etc.) is also another…

A: Pigments are produced by bacteria to absorb UV radiation or to quench oxygen free radicals. Sentence…

Q: Select all that apply to a direct simple stain:    1. the dye is acidic or negatively charged and…

A: Gram staining is used to examine the shape of the bacterial cells; if they are contaminated.…

Q: 8. Pigment or color (e.g.: opaque, translucid, red, yellow, rose, violet, etc..) is also another…

A: while culturing bacteria , there are certain bacteria which can produce pigments . these pigments…

Q: a. After conducting the Gram staining procedures and you observed that all cells are stained with…

A: The microorganisms that can be found in several areas of the habitat and come under the category of…

Q: To determine if the type of agar affects bacterial growth, a scientist cultures on fou different…

A: Agar is galactose based heterogeneous polysaccharide. Agar is made from red algae. The main…

Q: e the process to make a 4-phase streak plate beginning with your first streak (i.e you have…

A: The sample/inoculum is usually pored by streak with the diluted through streaking it across the…

Q: Would you use an inoculating loop to transfer bacteria to an agar deep tube?

A: Agar deep tube is a glass tube which is filled with solid medium. The medium is solid due to…

Q: Why is it important to limit the quantity of cells used to prepare a smear?  Mark all that apply:…

A: Smear represents a sample of cells which are going to be studied under a microscope for their…

Q: 2) Assume that you made an error during your staining procedure. You used safranin as the primary…

A: Majority of the cells that are being observed under the microscope lacks color and contrast in their…

Q: What are the advantages and disadvantages of using the Wet Mount technique?

A: As per bartleby guidelines, we are suppose to answer only one question kindly post other separately.…

Q: Streaking One drop of bacterial solution contains millions of cells. To identify a species,…

A: The purpose of streaking for isolation is to produce isolated colonies of an organism on an agar…

Q: What is the purpose of fixing a smear? Mark all that apply: 1. To attach the bacteria to the slide…

A: The staining of microorganisms is very much important that helps us in identifying the morphology…

Q: 1. What is the purpose for using stains? What microbial characteristics can one ascertain from a…

A: NOTE: AS PER OUR GUIDELINES WE ARE ONLY ALLOWED TO ANSWER FIRST QUESTION. PLEASE RESUBMIT THE OTHER…

Q: The main of objective of using 13-Line streaking method is to get:

A: Answer: 13-Line streaking method: It is the technique of obtaining pure bacterial culture by…

Q: The first step in identifying an unknown bacterium is to __________. culture your unknown on…

A: Bacteria are the minute microorganisms that are unicellular and have a cellular level of…

Q: 1

A: In the given slides first one is Pseudomonas aeruginosa colony.  Pseudomonas aeruginosa is a common…

Q: PCR tests are becoming more prevalent as a standard for testing for bacterial or viral disease.…

A: Introduction  Almost all the molecular biology techniques revolve around DNA/RNA/Proteins. DNA is…

Q: Which of the following is/are true regarding the acid-fast stain? (There may be more than one…

A: Answer  First option  Non-acid-fast microbes appear blue in a completed acid-fast stain.

Q: 1.What advantage(s) does the pour plate method have over the streak-plate method? 2.Why is the loop…

A: Introduction:- The pour plate method and streak plate method are micro-biological methods that are…

Q: Select all that apply to a negative stain:    1. involves a washing step 2. cells may be distorted…

A: Acid staining is a type of negative staining. This indicates that the dye readily releases a proton…

Q: 1. What is one advantage of utilizing the pour plate technique over the streak plate technique ?

A: Answer: THERE ARE THREE TYPES OF CULTURE METHODS  1. POUR PLATE TECHNIQUE 2. STREAK PLATE TECHNIQUE…

Q: 1. If you expose E.coli to UV light at 30 seconds, 1 minute, 3 minutes and 5 minutes, what are your…

A: Question -  1. If you expose E.coli to UV light at 30 seconds, 1 minute, 3 minutes and 5 minutes,…

Q: The colonies on a negative MSA plate would appear _____________.   2. "E. Coli and S. epidermidis…

A: MSA stands for Mannitol Salt Agar. The MSA plate is often used for halophilic bacterias. Halophilic…

Q: When testing the efficacy of an antibiotic against bacteria on an agar plate, it is important to…

A: The disk diffusion method, also known as the Kirby-Bauer test, is used to test the effectiveness of…

Q: Dilute cells from an old culture 1:50 into 200 mL cultures. What volume of the old culture would you…

A: Culture consists of appropriate substances which provides the growth to the desired organisms.