How to correctly subculture a colony in liquid medium
Dear all,
I've obtained a freeze-dried sample of Komagataeibacter xylinus from DSMZ (German equivalent of ATCC). According to the provided instructions, I will revive the culture in 1000ml of liquid medium. The colony will stay
I was wondering what treatments are used depending on the type and stage of cancer? Is chemo therapy the go to for nearly everything? Or do they really push the treatments that don't cause further DNA damage first?
Drag each word or phrase to the part of the Venn diagram to which it is associated; if a word or ...
Drag each word or phrase to the part of the Venn diagram to which it is associated; if a word or phrase is associated with both muscular and skeletal systems, place it in the overlapping parts of the circles.
If human CD8T cell was injected intravenously into someone could it destroy their orexin receptors?
It seemed to have worked in mice.
It seems like CDT worked its way into the mouse’s brain and destroyed the orexin receptors. Could this happen in humans too? Destruction of orexin receptors is what is believed to cause narcolepsy.
Clinical Application exercise 3: microbes in the environment
Hi guys I need help with this clinical application for my microbiology class!
The effectiveness of sanitation procedures in hospitals is determined by sampling surfaces for bacteria. Samples can be taken by rubbing a sterile, moistened cot
Can you identify the banding patterns predicted by each model after the first round of replication?
Part B - Experimental results: Banding pattern predictions for each model of replication Meselson and Stahl designed an experiment that would allow them to discern whether DNA replication occurs in a dispersive, semiconservative, or conservative
Legionella pneumophila in hospital water distribution systems has been linked
Legionella pneumophila in hospital water distribution systems has been linked to nosocomial infections. As a result, hospitals are investigating methods for eradicating Legionella in their water systems. Plate counts were used to determine the effect
An action potential moves along an axon due to the sequential opening of voltage-gated Na+ channels. The diagram below shows voltage-gated Na+ channels separated by a short distance in the plasma membrane of an axon. Initially (left panel), only chan
Calculate the turgor () within a leaf cell at night when the water potential () of the surrounding cell wall is –100 kPa and the osmotic pressure () of the solution within the cell is 500 kPa. [2 marks]
It is my understanding that when DNA mutates whether from stress, chemicals, or ionizing radiation the result is usually negative or neutral. If DNA mutations are unavoidable is there any evidence that anything would promote a mutation to be benefici
If a middle aged person had their lymphocyte total measured and they were healthy, how much range are they likely to have? I don't mean a reference range used for everyone. If for example their total was tested as X, if they got retest the next
What percentages salt solutions should I use when performing an osmosis experiment on naked eggs?
Hello.,
I am currently in the midst of performing an experiment for my (AP) biology class. The project focuses on the concept of osmosis, using a scale-less egg (‘naked egg’) and different NaCl-solutions. My teacher has already look
Hello guys. I have a homework and I'm having some problems. This picture of a cell Tririchomonas Foetus was taken by TEM microscope and I'm supposed to describe it's organels such as nucleus, flagella, kinetoplast, mitochondria, m
What will happen to the physical structures of a flower if multiple insertions in its petal happened
In genetics, an insertion (also called an insertion mutation) is the addition of one or more nucleotide base pairs into a DNA sequence. This can often happen in microsatellite regions due to the DNA polymerase slipping. An insertion changes the DNA s
clinical application exercise 4:transfer of bacteria:aseptic technique
Your microbiology lab maintains reference bacterial cultures, which are regularly transferred to a new nutrient agar slants. After incubation, the slats were observed, and the result indicated that an improper technique had been used. What led to thi
The localization of this enzyme is only factor that creates the difference between 2 daughter cells
I have a assignment. It is illustrated like this,
There is a cell that has a localized intracellular enzyme. It divides into two distinct characteristic daughter cells. However, there is only one of the daughter cells gets the enzyme produ
Can chichenpox infection elevate the levels of cells?
This problem originates from USABO 2017 Semifinal #10 question.
I thought it should elevate the level since it's a viral infection, then there should be more white cells gathering around the lesion. But the answer says otherwise. I wa
Hi. Can you help me to find some articles/publications related to experimental elongation of telomeres. I heard, that for such purposes biologists use viruses. So I believe to find some articles, where I can read about this viruses and about mec
How to obtain more bacteria culture from already developed colony in HS medium
I have a freeze-dried lab sample of pure Gluconacetobacter Xylinus (form. Acetobacter Xylinum). I am about to grow this colony of bacteria in a standard Hestrin and Schramm medium (HS) of 1000ml volume. This will allow me to run 10 diff
Do chloramphenicol and/or sanitizer inhibit growth of Lactobacillus or Streptococcus thermopilus ?
I did an experiment with tryptic soy agar medium recently and I had some issues so I need a few questions answered. The experiment was to use a TSA plate and first streak for isolation with yogurt in order to get a culture of Lactobacillus or Strepto
What can I do if I accidentally got boiling water in my Phenyl-ethanol alcohol agar?
I'm doing a series of at-home microbiology labs that are due next Monday. I'm on the last lab (#5) which uses three TSA plates and the PEA plates as medium. I had my PEA agar in a pot, immersed partially in water, on the stove in order to h
