684 Answered Questions for the topic microbiology

04/11/18

how can IHC be used to judge the virulence of 2 neuro-invasive virus strains in mouse infections?
can u also reference a good website or paper that explains it?  
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Microbiology Biology Genetics

04/03/18

Phylogenetic Tree
How would the following bacteria be placed in a phylogenetic tree? Desulfurococcus, Geogemma, Borrelia, Acidimicrobium, Deinococcus    
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04/03/18

You are told to prepare 70% v/v bottle of ethanol to spray down a laminar flow hood.
You are told to prepare 70% v/v bottle of ethanol to spray down a laminar flow hood.The maximum volume on the spray bottle is 250 ml. You have a 95% v/v stock bottle bottle of ethanol. What volume... more
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04/03/18

What volume in ml do you need to prepare 100 ml a 10 mM solution of Tris....
What volume in ml do you need to prepare 100 ml a 10 mM solution of Tris (MWT 121 g/mol) from 500 ml of 0.5 M stock?
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04/03/18

What amount in gram do you need to prepare 25 ml of a 10% w/v solution of Tris (MWT 121 g/mol)?
What amount in gram do you need to prepare 25 ml of a 10% w/v solution of Tris (MWT 121 g/mol)?
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04/03/18

What amount in grams do you need to prepare 100ml of a 10mM solution of Tris (MWT 121 g/mol)?
What amount in grams do you need to prepare 100ml of a 10mM solution of Tris (MWT 121 g/mol)?
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Microbiology

04/03/18

What are the three ways microbes can interact with humans?Mutualism, Commensalism,Parasitism. Give an example of an organism for each.
What are bacteria ways that Mutualism, commensalism, and parasitism can interact with humans?   How can diarrhea help bacteria in the infection process?   Name two specific exotoxins and the... more
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03/13/18

What weight in grams would you need of Tris....
What weight in grams would you need of Tris (MWT 121 g/mol) to prepare 250 ml of a 10% w/v solution?
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03/13/18

What volume in ml would you need to prepare 500 ml of a...
What volume in ml would you need to prepare 500 ml of a 50 mM solution of Tris (MWT 121 g/mol) from 1L of a 1M stock?
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03/13/18

You counted 100 colonies of bacteria on a LB plate....
You counted 100 colonies of bacteria on a LB plate. The plate was created using 100 ul of a 1:100000 dilution. What was the number of bacteria in the original stock?
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03/01/18

You count 1 x 10^6 cells/ml of cells with a hemocytometer,....
You count 1 x 10^6 cells/ml of cells with a hemocytometer. What volume in microliters do you need to seed a dish with 1 x 10^3 cells?
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Microbiology Biology Chemistry Dillution

03/01/18

You have been given a 1 L stock of 1M NaCl (MWT 58.4 g/mol). What volume do you need to prepare 100 ml of a 10 mM stock?
 Homework question :(   You have been given a 1 L stock of 1M NaCl (MWT 58.4 g/mol). What volume do you need to prepare 100 ml of a 10 mM stock? 
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Microbiology

02/20/18

Two cells with generation times of 30 minutes are inoculated into a culture medium. How many cells are there after 5 hours
I need to understand how to do the math for generation science questions such as this one. if you could help me that would be great!
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Microbiology

02/20/18

An experiment began with 2 cells and ended with 128 cells. How many generations did the cells go through
I had a question on how to solve these types of problems exactly and was wondering if you could help me. 
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Microbiology

11/20/17

The Vibrio enterotoxin is an example of an endotoxin.
microbiology
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Microbiology

10/06/17

What are the methods used for the identification of antimicrobial resistance ?
Materials and methods used for the identification of antimicrobial resistance   with references if possible
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Microbiology

09/25/17

in microbiology must all organisms in the same prokaryotic phylum be members of the same domain ?
in microbiology must all organisms in the same prokaryotic phylum be members of the same domain ? Explain Why or Why not ? Must all organisms in the same order be in the same class? why or why not?... more
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09/15/17

Microbio/Epidemiology Questions!? Please explain!!?
Hi, I am thinking about a hypothetical situation of epidemiology so that I can better understand some concepts.  some horses had contaminated water and got ill (lets say from E. Coli), and I... more
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Microbiology Biology Micro Food Science

09/15/17

Help - Microbiology/Epidemiology Question? !!
Hello, I was wondering if someone could check and see if I have an okay understanding of some epidemiological principles. All help is greatly appreciated!!I have some general questions.  1. Since... more
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Microbiology

05/09/17

Isolating different bacteria.
How do you isolate Staph. aureus, Staph. epidermidis, and Enterococcus faecalis? I know what I have to do to identify them but I don't know how to separate them into three pure cultures. Please help
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04/30/17

What are the different processes through which eggs and sperm are produced and why each is more prone to a different kind of genetic error?
What are the different processes through which eggs and sperm are produced and why each is more prone to a different kind of genetic error?
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Microbiology

11/21/16

Which is more likely to cause infections of deeper, less oxygenated tissues; a member of the enteric or pseudomonas
please explain in detail
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10/14/16

BIOLOGY INSULIN RESISTANCE IN TYPE 2 DIABETES? Question?
Hello, I am working through a little case study exercise related to insulin resistance, which is the primary cause of type-2 diabetes. According to my reading, "a continuous over stimulation of... more
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Microbiology

10/03/16

The Blood agar functions as a medium
Microbiology
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Microbiology

09/17/16

You discover a newly potential microbe that could help in degrading toxic waste into simple compounds that can be re-used. Use the scientific method to explain
be specific for each part using scientific method
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