Q#5

Design an experiment to answer the following question:
Does aspirin keep cut roses fresher longer?
1. What is your hypothesis?
2. What is your experimental group?
3. What is your control group?
4. Discuss how you will perform the experiment. What is your independent variable? What is
your dependent variable?

in a lab experiment to test the change in temperature of NaCl and the change in temperature of water:

Specific heat of NaCl is 0.88
specific heat of DI water is 4.2

in the experiment, the change in temperature for the water was much greater than the change in temperature of the table salt as well as the change in energy.
(when using equation E = g C × change in T)

why did this occur?

1. If you conduct and experiment 1500 times independently, i=1,2,3,...1500. Let y₁, y2.... yN be i.i.d observations from this experiment, yi=1 if heads with a probability of β; yi=0 if tails with a probability of 1-β. If you get 600 heads and 900 tails, what is the β_MLE？

Assume you have isolated S.aureus from your skin. Design an experiment on how would you determine whether it is penicillin and erythromycin resistant? (Make sure to include a hypothesis and how you would design the experiment. Also include proper controls and discuss briefly the techniques you would use). I need one page please.

An experiment has been initiated in a laboratory where recombinant DNA technology has been used to substitute the gene responsible for change of colour in chameleon with another gene responsible for “glowin-the-dark”. If this experiment is successful, chameleons carrying the “glow-in-the-dark” gene will not be able to change their colours any longer. Discuss the implication of these results in terms of ethics and conservation biology.

Your lab partner did an experiment where he added drug to a tissue, he thinks the drug caused receptor desensitization. He froze the tissue so it could be used in biochemical assays. What experiment would you do to test if the desensitization is the result of acute or chronic drug exposure? How would you interpret the results obtained?

In all ligand titrations, the concentration of ligand is varied around the KD of the complex. In a stoichiometric titration, what is the concentration of receptor in relationship to KD? How does this differ from a binding titration experiment? Can you get a KD from a stoichiometric binding Titration? Why do the stoichiometric titration experiment this way, and what kind of information does it give you?

in a lab experiment to test the change in temperature of NaCl and the change in temperature of water:

Specific heat of NaCl is 0.88
specific heat of DI water is 4.2

in the experiment, the change in temperature for the water was much greater than the change in temperature of the table salt as well as the change in energy.
(when using equation E = g C × change in T)

why did this occur?

Popular culture has taken many psychological experiments out of context.For example, Sperry’s “Split Brain” experiment has led many to inaccurately believe that the right side of the brain is “creative,” while the left side of the brain is “logical.” Explain why people would have come to that conclusion. In other words, what was it about Sperry’s experiment that pointed to that outcome?

1) How well do the shapes of the equipotential curves and the electric field lines reflect the geometry of the charge distribution?

2) One of the theoretical rules of electric fields is that the equipotential curves is that the equipotential curves never cross each other, nor the fields lines. So imagine in an experiment, they cross each other. What will be the cause of that case in this experiment?

Thanks for help