allow it to sit for another 12-15 days. 7. After 12-15 days have passed‚ record the sex and phenotype of all adult flies. As described in steps 1-3 Flynap will be used to anesthetize the flies before they are removed from the vials to be put into petri dishes for counting. Once all of the flies have been counted and recorded‚ place them into the “morgue” and dispose of all
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Reagents & Apparatus: 20 mL Sulfuric acid 1M‚ 2g Copper (II) carbonate‚ Bunsen burner‚ Tripod stand‚ Gauze‚ White tile‚ Filter funnel and filter paper‚ Glass rod‚ Spatula‚ 100 mL Glass beaker‚ Conical flask 250 mL‚ Petri dish‚ Balance Procedure: Stage 1 1 Add 20 mL 1M sulfuric acid in a 100 mL beaker. Heat carefully on the tripod with a blue flame until nearly boiling. 2 When the acid is hot enough‚ turn off the Bunsen burner and stand the beaker on a white
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Osmolarity TITTLE: practical of estimation of osmolarity in tissues by bathing samples in hypertonic and hypotonic solutions. INTRODUCTION: Osmolarity is the osmolar concentration of plasma and is proportional to the number of particles per liter of solutions shown as (mmol/l). It is derived from the measures Na+ and K+‚ urea and glucose concentrations. Since the volume of solution changes with the amount of solute added also it change in temperature and pressure‚ osmolarity we can say it’s
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CERTIFICATE ACKNOWLEDGEMENTS "There are times when silence speaks so much more loudly than words of praise to only as good as belittle a person‚ whose words do not express‚ but only put a veneer over true feelings‚ which are of gratitude at this point of time." I would like to express my sincere gratitude to my chemistry teachers Mrs. Meenakshi‚ Mrs. Sonali and Mrs. Shampa for their vital support‚ guidance and encouragement - without which this project would not have come forth. I would
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you are going to plan an experiment to investigate the conditions that speed up the decay of bread. You will be given cubes of bread that have been left in the air for one hour and are then ready to be put into Petri dishes‚ which you will seal. You can choose the conditions for each Petri dish. Questions 1 What conditions are needed for bread to decay? ................................................................................................................................. ..
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Once the experiment was over the results showed that the head end was able to retain the learning by classical condition better than the tail end could. There were more positive reactions with the head compared to the tail. It was not a drastic difference‚ but the head it was able to retain the learning slightly better than the tail end did. Not everything goes as planned so there were some experiment where the planarian was lost or it died. Some planaria did not retain the information before it
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Problem: How do protease in some fruit juices help softening meat? Hypothesis: The protease in some fresh juices digests collagen‚ which gives meat a tough texture by holding meat fibres together. Design of investigation: In order to test the hypothesis‚ the presence of protease in those fresh juices was tested at first. Then the amount of them was needed to be compared for finding their difference in effectiveness in tenderizing meat. Control experiments were set up for proving protease was
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g/mole) diffused with a faster rate (dave=20.25cm) as compared to HCl which has a greater molecular weight (36.4611g/mole) and diffused with dave=16.38 cm. A white ring of smoke formed closer to the heavier substance. The agar-water gel set-up used a petri-dish of agar-water gel with three wells on it. A drop of potassium permanganate (KMnO4) was put on one well‚ a drop of potassium dichromate (K2Cr2O7) was put on the other and a drop of methylene blue was put on the third well. Methylene blue which has
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this helps make the microorganisms virulent‚ or able to cause disease. Because of the capsule‚ this strain of S. Pneumonia grows as smooth-edged (S) colonies when grown in a Petri dish. The second strain of S. Pneumonia lacks the polysaccharide capsule and does not cause disease. When grown in a Petri dish‚ the second strain forms rough-edged R colonies Griffith knew that mice infected with the S bacteria grew sick‚ and died‚ while mice infected with the R bacteria were not harmed
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Formal lab report: Abstarct: The Purpose of this experiment was to perform Agrobacterium-mediated transformation in Wild type Arabidopsis thaliana Columbia by using somatic plant transformation method. The whole process lasted for over a period of 11 weeks and we were successful in getting transformed plants. Agrobacterium tumefaciens strain containing pMP90 (Ti-helper) plasmid and pCAMBIA1391 (T-DNA) plasmid was used for this plant transformation. pCAMBIA1391 plasmid was constructed by cloning Brassica
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