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METHODS
We stuck flies to popsickle sticks by pushing their wings into a sticky wax werubbed on the sticks. Then we made a dilution series of glucose, maltose, and sucrose inone-half log molar steps (0.003M, 0.01M, 0.03M, 0.1M, 0.3M, and 1M) from the 1Mconcentrations of the sugars we were given. We tested the flies' sensory perception bygiving each fly the chance to feed from each sugar, starting with the lowest concentrationand working up. We rinsed the flies between tests by swishing their feet in distilled water.We counted a positive response whenever a fly lowered its proboscis. To ensure thatpositive responses were to sugars and not to water, we let them drink distilled water beforeeach test. See the lab handout Taste Reception in Flies (Biology Department, 2000) fordetails.RESULTSFlies responded to high concentrations (1M) of sugar by lowering their proboscesand feeding. The threshold concentration required to elicit a positive response from atleast 50% of the flies was lowest for sucrose, while the threshold concentration was highestfor glucose (Fig. 1). Hardly any flies responded to saccharin. Based on the results from all Fly?lab?report?p.?4 ????????????????????????????????Fly?lab?report?p.??the lab groups together, there was a major difference in the response of flies to the sugarsand to saccharin (Table 1). When all the sugars were considered together, this differencewas significant (t = 10.46, df = 8, p
It is a very curcial concept to understand how the immune response is mounted against viruses, bacteria, protozoans and helminthes. For an effective immune response, both innate and adaptive immunity should work together.
This Project report elaborates a critical review of important elements attached to Advanced Glycated End Products (AGEs). It is very crucial to understand the process called Millard reaction.
Soil stabilization is the permanent physical and chemical alteration of soils to enhance their physical properties. Stabilization can increase the shear strength of a soil and control the shrink-swell properties.
This assignment has three parts which contains questions related to Microbiology. It contains basic principles of microscopy, staining techniques in microbiology and microbial growth in the food industry.
Lipid metabolites are often seen as key elements in cellular signaling. Is this unique? Please provide several examples of the function of lipids as key elements in signal arrays and list the biologic functions these signals affect?
Please describe how one might search for chemical structure, biologic function relationships, involving small molecular weight lipophylic compounds. Provide one example.
Write a case study which detailing a scenario of a patient being investigated in the Haematology laboratory.
The use of PCR and genetic approaches in biotechnology
Glucose oxidase is an enzyme that can be used for measurements of glucose levels by combining this reaction with an oxygen probe.
What phenotypic ratio would you get if you crossed a white mouse and a heterozygous brown mouse?
Prepare an essay on nosocomial infection.
To increase the awareness of monitoring and recording the blood pressure of patients and practice measuring blood pressure in a safe environment.
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