A common step in the isolation of cells from asample of animal tissue is to treat the tissue with trypsin,collagenase, and EDTA. Why is such a treatment nece-ssary, and what does each component accomplish? Andwhy does this treatment not kill the cells?

Q: РСЕА What is PCEA?

A: PCEA :-  Patient controlled epidural analgesia In abdominal surgeries  many might get problems like…

Q: A gut epithelial cell line that has been genetically engineered to express a common…

A: Cholera is a bacterial disease characterized by diarrhoea and dehydration. The disease is caused by…

Q: Most medically useful antibiotics interfere with either peptidogly¬can synthesis or ribosome…

A: Antibiotics need to selectively target bacterial structures or processes while sparing human cells…

Q: What is the charge of the target cellular structure of positive staining and negative staining?

A: Basic stains are cationic when it is ionized, the chromogen exhibits a positive charge. the positive…

Q: 1. What is host resistance in bacteria? 2. What is gram staining technique? 3. Difference between…

A: 1.    A bacteriophage is a virus that can infect a bacterium and can live inside a  bacterium as a…

Q: How can we combat bacteria, that contain R plasmids, when treating a bacterial infection?

A: Bacteria have been evolving to protect them selves from hazardous compound i.e., antibiotics etc.…

Q: Explain the importance of each of the following plasmids: conjugative plasmid, R plasmid, Col…

A: Biotechnology is a branch of biology, including the use of living organisms to produce products.…

Q: use to stop the growth of mycoplasma.

A: Mycoplasms is a bacterial genus. It can be a saprophyte or parasite. They are the smallest bacteria.…

Q: E. coli cells have peritrichous flagella. What does this mean?

A: E.coli. is a type of bacterium. Bacteria are unicellular and prokaryotic organisms that live in a…

Q: how do you graph change over time for onion, cheek , and bacterial cell? Can you explain how you…

A: Onion cells, human cheek cells, and bacterial cells are subjected to be affected by any change in…

Q: C. In 1928, Sir Alexander Fleming was studying Staphylococcus bacteria growing in culture dishes. He…

A: Bacteria are prokaryotic microorganisms very much capable of causing a disease. On the other hand,…

Q: Why may some bacteria use extracellular enzymes to form blood clots? View Available Hint(s) for Part…

A: Option B. Blood clot can hide bacteria from the immune system

Q: If a bacterial species is not susceptible to an antibacterial drug at the concentration present in a…

A: Antibiotic susceptibility test is the test used to determine the effect of antibiotic to an…

Q: A 4-month-old infant had been running a moderate fever for36 hours, and a nervous mother made a call…

A: Antibiotic resistance is the loss of tendency of killing or controlling bacterial growth by…

Q: M. tuberculosis (Mtb) takes about 12h to 18h to do a cell division. This partially explains why it…

A: Mycobacterium tuberculosis (M. tb) is a tuberculosis-causing pathogenic bacteria belonging to the…

Q: How can we steralize Animal cell in culture?

A: Sterlisation is the process of removal of any microorganisms present in vegetative or spore form.…

Q: Why might it be difi cult to develop a manufacturing cell?

A: Cell manufacturing is the process that requires a large-scale expansion of cells without…

Q: When a test tube of bacteria is treated with penicillin and left for two days, the bacteria were…

A: Penicillin belongs to the class of antibiotics known as beta-lactams, which inhibit the synthesis of…

Q: Katelyn had been working for Dr. Johnson for a month, and while she had become quite good at…

A: Methicillin-resistant Staphylococcus aureus (MRSA) is a bacterium that causes infections in…

Q: Some strains of Staphylococcus aureus produce exfoliative toxin, a chemical that causes portions of…

A: Staphylococcus aureus is a bacterium that falls under the gram-positive category. It has a spherical…

Q: They are not a by-product of any part of human metabolism. Why doesn’t the human body use PCBs as…

A: PCB of polychlorinated biphenyl is a manmade organic chlorine compound. It is mainly used as a…

Q: If a single bacteriophage infects one E. coli cell present in a cultureof bacteria and, upon lysis,…

A: single bacteriophage infects one E. coli cell present in a cultureof bacteria. Upon lysis it yields…

Q: E. coli cells have peritrichous flagella. What does this mean?

A: Escherichia Coli, also referred as E.coli, is the rod-shaped, gram negative bacterium. It generally…

Q: What is the role of the following in the alkaline plasmid screen?    G buffer (Cell Suspension…

A: G buffer (Cell suspension solution): It is a solution that consists of a mixture of Tris (pH 7.5)…

Q: The human intestinal tract is home to a vast, diverse microbial community. The bacteria that…

A: To investigate the microbial community in the human intestinal tract, scientists collected fecal…

Q: The last time we ran a gel, we ran a 1% gel. Why would we choose to run a 3% gel today on the worms

A: percentage of gel varies to see a better separation and resolution

Q: What are bacterial plasmids ?

A: Cloning is one process involved in gene manipulation and recombinant DNA technology.

Q: Your roommate left the deviled eggs out on the counter for 8 hours, but is happily eating them for…

A: Microbiology is the branch of science that deals with the study of microorganisms that are too small…

Q: What is the purpose of Xanthoproteic test and explain the observation or rection for albumin and…

A: Xanthoproteic test is a type of colour test to detect a specific functional group, structural…

Q: Can you explain why using bio printing is better than SLA and which materials would be best to use…

A: Bioprinting and Stereolithography (SLA) are two distinct procedures utilized within the field of 3D…

Q: interphase FISH is used on fixed material from a solid tumour, rather than metaphase FISH

A: Interphase FISH is a new technique introduced into the molecular cytogenetics. it is used to study…

Q: Why should plasmid sample be mixed in the inverted position and not vortexed?  Will these actions…

A: Plasmids are small circular pieces of DNA that can be found in many bacteria and are often used in…

Q: Why is investigation of the metabolome laggingbehind that of the proteome?

A: Metabolome refers to the entire set of small molecules and the metabolic intermediates generated by…

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: You have several different media onto which you inoculated eight strains of yeast (A-H). The media…

A: Minimal medium (unsupplemented) A minimal medium is a growth medium used for growing microbes and…

Q: Besides the cheek cells, what other cells might you see on the specimen? Consider both the structure…

A: Cheek cells are the epithelial cells lining the oral cavity. These are eukayotic cells with a…

Q: Features of bacteria that aid _________ research aremonoploidy, which facilitates mutant…

A: Mutation is a sudden change in the genome of an organism which results in a variant form that can be…

Q: In general, why might cell-wall inhibiting antimicrobial drugs be less effective on gram-negative…

A: The gram-negative and gram-positive bacteria are differentiated based on their staining properties.…

Q: How to isolate cell membrane from K562 cell lines?

A: K562 is a cell line of human chronic myelogenous leukaemia initially obtained from the bone marrow…

Q: Researchers studying the bacterium Escherichia coli split a population of the bacteria into two…

A: The claim best supported by the data in table 1 is: D. Only the bacteria that were successfully…