Not all chemical disinfectants are bactericidal. Depending on the different mechanisms disinfectants use, they can be categorized mainly as bactericidal or bacteriostatic. This solution discusses briefly the mechanisms, similarities and differences between bactericidal and bacteriostatic disinfectants. This response also dis
Please help answer the following question. Include references. Why are viruses not considered alive? In the explanation, include the criteria that must be met for something to be considered alive.
Describe the Hershey-Chase experiment. Explain in your own words, as if you were talking to someone with no genetics background, how they used radioactive isotopes to demonstrate that DNA, not protein, is the genetic material. Be sure to include details of the experiment in your explanation.
Discuss at least four types of organisms that can cause parasitic diseases in the human being. Explain three laboratory techniques that can be used to identify an intestinal parasitic infection. What are the different routes that pathogenic protozoans can use to enter the host cells? Why were some contact lens sol
Using the Internet to gather statistical data and related background information on your chosen disease. Compile information on the following: Populations affected by the disease Historical outbreaks of the disease Typical progression of the disease discussing your findings and analyze factors
Hershey and Chase intended to see if it's the viral DNA or the viral protein coat that enters bacteria upon infection with bacteriophage (virus infecting bacteria). By determining this they could tell which component of virus actually carries the genetic information and results in formation of more viruses with in the bacterium
The purpose of the experiment that took place was to determine the titer of B-D-galactosidase using the enzyme-linked immunosorbent assay. given the results of the experiment, how do you determine the titer, and what do these results mean? The raw data (results obtained from the plate reader) are attached in the excel file. I fo
You had your flu shot but still got the flu. Use your knowledge of immunology to provide two explanations for this development.
A number of tumors from inbred animals such as mice and chickens show associated retroviruses. How do you think they affect gene expression in these animals such that it results in cancer? Propose experiments to test your hypothesis.
If you were to create a hypothetical perfect pathogen, identify four features of the pathogen that help to maximize its survival and spread within a host population. For each feature described, provide a named example of a real pathogen that uses a similar feature.
Human Immunodeficiency Virus (HIV) is described as being a pandemic already, but does this disease have the potential to explode into one of the greatest health care threats during this century
Using named examples compare and contrast viral evolution via antigenic drift and via antigenic shift. State which mechanism is most significant in terms of impact of human disease explaining your answers.
Please help with the following problem. Why are insect transmitted viruses (arboviruses) silent infections in animal hosts but not in humans?
What species is the most common source of virus in foodborne disease and what measures might be taken to reduce the risk of viral transmission from this source?
8.) Which form of hepatitis causes appreciable death loss in pregnant women?
Explain which of the BELOW foodborne diseases are considered not indigenous to the U.S. & why? Note that the question asks about disease, not agent that causes the disease. A Caliciviruses -- Noroviruses and Sapoviruses B Hepatitis A Virus C Hepatitis E Virus D Group A Rotavirus E PRIONS
1.) How are shellfish associated with foodborne viral infections?
1.) Which foodborne viruses have a short incubation period and a short course of disease?
1.) Which group of viruses is the most common cause of viral foodborne disease? Note: Most be a least 3 paragraphs and please site references used.
Discuss in some detail the set of effectors developed by Yersinia sp. to ensure their survival in the human host.
1.) What virulence factors are important in establishing a Salmonella infection? Note: Please make responses at least 3 paragraphs and cite references.
Summarize how pathogens circumvent host cellular immune defenses, including references.
How can diseases be diagnosed using specific antibodies?
(1)How would your body react in a non-specific way to a threat of microbial invasion (2)How would your body react in a specific way to a viral invasion? (3)Describe how memory cells contribute to immune protection?
Consider one human viral disease you would like to report on. Write a report on your chosen human viral disease. The report should include the following factors relative to the disease and should be written with APA style; causative agent, pathogenesis, clinical manifestations, prevention, and treatment.
I) Why might have virology developed more slowly without the use of Chamberland's porcelain filter? ii) How are viruses classified? Give a complete account of the characteristics used in this process? iii) Describe the lytic and lysogenic life cycles of a bacteriphages. Include in your answer comparisons a
Identify the organs of the immune system and their respective functions.
Explain the similarities and differences between cell mediated immunity and antibody mediated immunity.
2. Three siblings are exposed to Parvovirus B19, a virus that commonly infects children, infecting and destroying erythrocytes (RBCs) and in rare cases causes a transient anemia but usually is cleared with no long term affects. They responded as follows: -Brother #1, age 14, develops a high fever and general malaise 8 days a
1. ALLELIC VARIATION IN PEOPLE HAS ALLOWED SOME PEOPLE TO BE EXPOSED TO HIV MANY TIMES WITH OUT BECOMING INFECTED AND PROGRESSING TO AIDS. EXPLAIN THE MOLECULAR BASIS FOR THIS RESISTANCE. 2.THERE ARE 2 KINDS OF REVERSE TRANSCRIPTASE INHIBITORS, HOW DOES THE INHIBITOR FUNCTION TO PREVENT REVERSE TRANSCRIPTION OF THE VIRAL RNA