Which stain is used to distinguish differences between the cell walls of medically important bacteria? a. simple stain b. acridine orange stain c. Gram stain d. negative stain

Q: Which Baltimore Class of viruses requires RdRp? a. all answers are correct b. III c. IV d. V

A: The Baltimore classification system is a widely used method of categorizing viruses into seven…

Q: QUESTION 23 What kind of staining process was used to make this slide? Negative Stain Endospore…

A: Negative staining - Negative staining procedure helps to study the cell shape, cell breakage,…

Q: Describe how you would perform a Gram Stain. Describe how to perform the streak for isolation…

A: According to guidelines , we are supposed to attempt first three questions in case of similar…

Q: Which lab technique can you use to verify? a.Nucleic Acid Purification b. PCR c.SNP Variation

A: Any kind of verification in genetics is done by Ployerase chain reaction. Here a very small amount…

Q: Which process consists of modifying an individual’s genome?​   a. ​DNA profiling   b. ​SNPing   c.…

A: In biotechnology different techniques have been used routinely in laboratories that ultimately…

Q: Which of the following WILL INCREASE gelling if addition of Ca2+ ions was added?   a. starch   b.…

A: Gelation is a process where formation of 3D network of polymers from monomers.

Q: Centrifugation at 4000rpm for 15 minutes will results in which enriched components of the isolation…

A: Different-density molecules can be separated using centrifugation, which involves rapidly spinning…

Q: What is the role of CTAB in DNA isolation? A. Neutralize negative charge of DNA B Precipitate DNA…

A: CTAB is cetyltrimethylammonium bromide that is used in buffer during isolating Deoxyribonucleic Acid…

Q: what is bibulous paper used for? a. bleaching the benchtop b. cleaning microscope lenses. c.…

A: To view sample sections under microscopes, slides should be prepared. For the preparation of slides,…

Q: Move the images of bacterial cells into the chart to illustrate the color of gram-positive and…

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

Q: Fully interpret this Gram stain. There may be more than one organism present. Use the most specific…

A: Microbes or microorganisms are mainly visible under the microscope only. Bacteria are the most…

Q: Choose the combination of answers that most accurately completes the statement.The major difference…

A: Microorganisms are chiefly named Bacteria, Cyanobacteria, Fungi, and Protists. Bacteria are…

Q: Differentiate between cytotaxonomy and chemotaxonomy.

A: Taxonomy or systematics is a branch of biology in which the organisms are classified into categories…

Q: which dye had the largest component

A: The correct answer is the option 2. Dye 2 has the more dense component.

Q: Which of the following is NOT an optical microscope? a. dark-fi eld c. atomic force b. confocal d.…

A: Microscopes are used for the visualization of objects which are not visible to the naked eyes.…

Q: Why did the gelatin tubes have to be moved to 4C before analysis? a. If gelatinase was produced the…

A: Gelatin is a protein derivative obtained from animal collagen. A gelatin test is performed in…

Q: The sequence of one strand of DNA is ACCTGC. What is the sequence of the complimentary strand of…

A: The nitrogen-containing bases adenine (A), thymine (T), and cytosine (C), as well as guanine (G),…

Q: Select the correct answer from the answers provided. In a viable plate count, each ch represents a a…

A: There are some living organisms that cannot be observed by the naked eye and only can be seen under…

Q: Dr. Rodo and is colleague Mr. Simms were studying the effect of a particular herbacide on the…

A: Microscope: An instrument which is being used in laboratory for examining those things which are not…

Q: Which is the correct way to denote the scientifi c name of a microorganism? a. e. coli.b. E. coli…

A: Step 1 Nomenclature is providing proper, specific, and distinguishing names to each and every…

Q: Which technique(s) allow us to obtain a single, pure colony? (select all that apply) 0 Serial…

A: A pure culture contains colonies of only a single microbial species. The isolation of a single type…

Q: What is the decolorizer for the spore stain?

A: Spore Staining is a technique used in microbiology to differentiate vegetative cells and…

Q: Which process involves the deliberate alteration of an organism’s genetic material?a. bioremediation…

A: The genetic material of a cell or an organism refers to those materials found in the nucleus,…

Q: Which process is occurring in these bacteria?     A. transduction   B. transformation   C.…

A: Microbes are able of exchanging hereditary material through different mechanisms, permitting them to…

Q: Which of the following experiments was used by Twort and d'Herelle to demonstrate the existence of…

A: The two co-discoverers of the "Twort-d'Hérelle Phenomenon," also known as "transmissible lysis of…

Q: Use the forkline method format. 1. DDEEFF x ddeeFf

A: The fork line approach involves calculating the frequency of each gene or group of genes to be…

Q: DNA is directly passed from one live microbial cell to another in the process of ?   A.…

A: Sexual reproduction in bacteria is different from the sexual reproduction in eukaryotic organisms.…

Q: Explain the correlation between the original green area and the area stained by the iodine.

A: For plants, photosynthesis is an essential mechanism that turns light energy into chemical energy in…

Q: Choose the combination of answers that most accurately completes the statement.R factors are…

A: A small, extra chromosomal DNA molecule within a cell is known as plasmid . It can be physically…

Q: In which reagent is extracted DNA suspended to put it in solution? A. Sodium citrate saline buffer…

A: In which reagent is extracted DNA suspended to put it in solution?   A. Sodium citrate saline…

Q: What is the role of chloroform in DNA isolation? A. Precipitate RNA B Precipitate phospholipids C…

A: DNA isolation is process of extraction of DNA from the cells of an organism using biological samples…

Q: What is the role of Sodum Dodecyl Sulffate in DNA isolation? A. Precipitate DNA B Make the…

A: DNA isolation is process of extraction of DNA from the cells of an organism using biological samples…

Q: assess? a. Cell death b. Cell size c. Cell granules d. Cell fluorescence

A: Flow cytometry is a technique for counting , examining and sorting microscopic particles suspended…

Q: The term "Superbug" refers to? A. Certain bacteria strain that can grow in all kinds of unfavorable…

A: Introduction :- Superbugs are bacteria, viruses, parasites, and fungi strains that are resistant to…

Q: Choose the combination of answers that most accurately completes the statement.Which of the…

A: For a living organism, the cell is considered the basic fundamental unit of life. Organisms can be…

Q: Explian how each tests are performed in the lab? please explain the method of each tests? A,…

A: A, indole test    B. startch test    C. citrate test

Q: Explain what happens in positive staining to cause the reaction inthe cell.

A: Dyes are selected for staining based on the chemical properties of the dye and the specimen being…

Q: Among these protein assays, which is appropriate for solutions with high protein concentration or…

A: Protein assay is a quantitative analytical technique. It is carried out to determine the amount of…

Q: What is the role of Sodium Iodidee in DNA isolation? A. Solubilization of phospholipids B…

A: DNA is made up of Nitrogenous bases, sugar backbone and phosphate that links 2 nucleotides together…

Q: Which technology facilitates the production of novel DNA molecules by combining sequences from DNA…

A: Introduction: Recombinant DNA technology uses gene cloning and gene transfer to isolate and…

Q: DNA polymerases that corrects errors and mismatches in DNA is called?   A. Post replication repair…

A: Although DNA replication is an extremely exact process, errors can occasionally happen, such as when…

Microbial Isolation

Isolation of the microorganisms in microbiology is the process of developing a pure culture by separating one species of microbe from a mixture of many other species. A pure culture is a culture that contains only one species of microbe.