During the Chipotle outbreak, some people were sickened withE. coli, but a DNA profile of the bacterium in their feces showed that it was not the outbreak strain. What conclusion can be drawn fromthis information?a. The person was not sickened by E. coli.b. The person is not part of the outbreak.c. Escherichia coli mutates frequently, making DNA profilingunreliable.d. The person has already begun to recover from the disease.

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: Which of the following method can cause plasmid DNAs to be uptaken by the bacteria cells?…

A: A plasmid is a small double-stranded DNA unit that exists independently of the chromosome and is…

Q: Below is a DNA profile of an individual. Use the diagram below and your knowledge from lecture to…

A: DNA profile of an individual on the basis of relative fluorescence.

Q: Early principles of infection control are attributed to? O a. Louis Pasteur b. Edward Jenner O C.…

A: Louis Pasteur was a father of immunology as he introduced a clear concept of vaccination after…

Q: 105) The Baltimore classification a. There were 4 classes for DNA families b. There were 6 classes…

A: Baltimore classification: It is based on the fact that the virus synthesizes mRNA for further…

Q: Penicillin is effective antibiotic prevents making peptidoglycan so we cannot use it when the caus…

A: Antibiotics are the medicines derived from weak strains of bacteria to kill virulent strains of…

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

A: Some living organisms cannot be visible by the naked eye and only can be seen under the microscope.…

Q: PCR analysis of your sample did not work can you suggest why? How can you test if this is true?

A: PCR  stands for polymerase chain reaction    *PCR is nowdays used often in  hospitals and large…

Q: Why are encapsolated bacteria generally more pathogenic than un-capsolated strains. a. Because…

A: The capsule is a layer of polysaccharide found outside the cell envelope of bacteria.  Capsule gives…

Q: The cath sample was both filtered to remove all bacteria, and then treated with DNase.  Based on…

A: A cath or catheter is a thin hollow tube, which is a medical equipment that is used for various…

Q: Which infectious agent of those covered in the chapter would mostlikely be acquired from a…

A: Some infectious agents are acquired mostly from hospitals or from other infected individuals. Others…

Q: Design an experiment to produce bacteria resistant to the antibiotic’s ampicillin, streptomycin, and…

A: Creating antibiotic-resistant bacteria involves genetic modification, which is done using modern…

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: Which infectious agent is an obligate parasite? a. Mycobacterium tuberculosis b. Corynebacterium…

A: A holoparasite or a obligate parasite alludes to a parasitic creature, which neglects to finish its…

Q: Predict whether the loss of the following E. coli genes would lead to lethality. Justify your answer…

A: Escherichia coli has a double-stranded circular DNA (deoxyribonucleic acid) genome. The size of its…

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: Vaccination can provide protection against N. meningitidis, aseventually happened in this case. A…

A: Knowledge of the surface antigens of a pathogen, and the ability of the antigen to sensitize the…

Q: DNA fingerprinting and antibody-based ELISA tests would be used during which step of microbial…

A: There are many techniques that are very helpful in the field of biotechnology such as polymerase…

Q: A patient was infected with E. coli, a gram negative bacteria. After taking a first dose of…

A: Ciprofloxacin is an antibiotic which inhibits the replication of the DNA. It inhibits the bacterial…

Q: When doctors first discovered that the virus was Zika, they felt relieved because Zika outbreaks had…

A: The statement is not necessarily true. When doctors first discovered the Zika virus, it is unlikely…

Q: Why did bacteria not degrade this body like they would normally?   A. Because bacteria did not…

A: The question is asking why a body did not decompose as it normally would due to bacterial activity.…

Q: Frederick Griffith documented bacterial transformation. Which statement is true concerning his…

A: Bacterial transformation is the process of horizontal gene transfer through which some bacteria…

Q: conclusion about ISOLATION OF BACTERIOPHAGES FROM SEWAGE SLUDGE

A: On analyzing the isolated strains of Bacteriophases from sewage sludge, it was found out that almost…

Q: If the pneumonia is caused by bacteria , could you use Koch's postulates? In which case of bacterial…

A: Robert Koch is a German physician who developed Koch postulates. They define the relationship…

Q: The catalase test is used to primarily differentiate Staphylococi from _____________.     A.…

A: The enzyme, catalase, is produced in the bacteria that respire using oxygen. The main role of the…

Q: One of the leading causes of morbidity and mortality after a person gives birth is sepsis. Some…

A: Group A Streptococci: a. Streptococcus is gram-positive cocci that occur in pairs and chains. b.…

Q: What test are you going to use in the lab to determine the presence of eggs in a cake: a. Fehling's…

A: Biochemistry is a branch of biology that studies the chemical processes that occur inside and around…

Q: A(n)__________- infection is acquired through exposure in a hospitalsetting.a. subclinical b. focal…

A: An infection is the invasion of an organism’s body tissues by disease causing agents, their…

Q: Which of the following statements is correct? a. Serial interval is the length of time a…

A: Illnesses that are caused by harmful pathogenic organisms or agents that are present outside the…

Q: Why was it so interesting that the woman had lesions inside of her body, and not just on the…

A: The question is asking why it was significant that a woman had lesions not only on the outside of…

Q: If you do not see single colonies on some of the plates, explain what might have happened to the…

A: A bacterial colony is a mass of bacterial cells originating from mother cells, they grow on solid…

Q: A decubitus ulcer (bedsore) is an example of:     A. Molecular death     B. Necrobiosis     C.…

A: De  1,  Decubitus ulcer is characterized by the pressure necrosis occur in a area of body subjected…

Q: A. What is Pasteur’s “Germ Theory of Disease?. How did he discover this principle?  B. What major…

A: Before the acceptance of germ theory, the Miasma idea prevailed, which believed that disease was…

Q: Demonstrate a procedure that you could adopt to restrict or digest the TOL plasmid.

A: Plasmids are extrachromosomal, circular, double-stranded, self-replicating DNA. They are naturally…

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

A: There are three methods of gene transfer. These methods are bacterial conjugation, natural…

Q: What term best describes instruments that have been used on dead human remains? a. infected b.…

A: Sterlization:  Sterilization is any process that removes, kills, or deactivates all forms of life…

Q: What is the basic classification of viruses. In other words, if you find a new virus, what is the…

A: Viruses are considered as non cellular; simple entities. They are considered as obligate…

Q: Bacteria can acquire DNA directly from the environment through: please explain the answer…

A: Introduction :- One bacteria can exchange genetic material with another directly through the process…

Q: 24) The infectious bursal disease virus strain D78 is a : a. Genus name b. Species name C. Order…

A: The infectious bursal disease virus strain D78 is ?

Reproductive system infection

The biological process through which parents produce new children is called reproduction. A reproductive system is a group of internal and external organs that collaborate to allow males and females to reproduce. Many experts believe that the reproductive system is one of the most important systems in the body due to its crucial function in the survival of the species. Among the body's basic systems, the reproductive tract is the one that differs the most between sexes, and it is also the only one that does not operate until puberty.