Animal testing has been used since before 384 B.C. Scientists have questioned the purpose of animal testing since the early 17th century. Progress has been made in trying to find alternatives for animal testing such as “studying cell cultures in a petri dish‚ which can produce more relevant
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Research- 3D Bioprinting Technology Sayda Perez ITT- Technical Institute Author Note Sayda Perez‚ Strategies for the Technical Professional‚ ITT- Technical Institute Correspondence concerning this research paper should be addressed to Sayda Perez‚ Department of MAA‚ ITT- Technical Institute‚ Lake Mary Campus Email: SPerez160@email.itt-tech.edu Introduction In today’s world‚ technology plays an important role in every industry as well in our personal lives. Out of all the industries‚ healthcare
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If a canned and fresh pineapple chunk were placed on separate petri dishes with jello‚ then the state of the jello would be similar because both pineapple samples contain bromelain‚ a protein digesting enzyme. Jello consists of collagen‚ which can be found in animal bones and tendons‚ therefore classifying jello as
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showed that NH3 which has a relatively lower molecular weight (MW NH3= 17.03 g/mol) than HCl (MW HCl= 36.46 g/mol) diffused at a faster rate (dave NH3 = 19.35 cm) compared to HCl (dave HCl= 16.18 cm). Another experiment was performed with the use of petri dish containing an agar-water gel with three wells. One drop of each substance (potassium dichromate‚ potassium permanganate‚ and methylene blue) was placed on each respective well. In three-minute interval for 30 minutes‚ potassium permanganate‚ which
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increase overall growth. We tested these hypotheses by preparing five different petri dishes‚ each containing cultures of the bacteria E. coli. In two of these dishes (set up identically)‚ containing plain agar with no additional nutrients‚ we added small amounts of Penicillin to half the plate and water to the other half. We then observed the plates after one week’s time. For the other three plates we stored one dish at 4°C‚ one at 22°C‚ and one at 37°C; no antibiotics were added to any of these
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The most common form now‚ is petri dish testing‚ which has been proven to be more effective than animal testing‚ because petri dishes can produce more relevant information. Along with petri dishes‚ there are Microfluidic chips. The chips are lined with human cells‚ which then can recreate the functions of human organs. When using the microfluidic chip‚ it allows
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SUBLIMATION Sublimation is a technique used by chemists to purify compounds. Typically a solid is placed in a vessel which is then heated under vacuum. Under this reduced pressure the solid volatilizes and condenses as a purified compound on a cooled surface‚ leaving the non-volatile impurities behind. This cooled surface often takes the form of a "cold finger" (shown in the diagram above). Once heating ceases and the vacuum is released‚ the sublimed compound can be collected from the cooled surface
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tissue of animal ( fish ) 2. Mortal and pestle‚ 3. Petri dish 4. Lysis buffer 5. 1.5mL centrifuge tube 6. Phenol : chloroform (1:1) 7. Proteinase K 8. 3M NaOAc (ph 6.0) 9. Absolute ethanol 10. 70% ethanol 11. TE buffer / distilled water Procedure 1) Fresh fish was cut to 0.5cm 2) Fish tissue washed with 70% alcohol 3) Wetted the tissue with a few drop of 70% of alcohol ( in petri dish) 4) Minced the tissue using mortal and pestle 5)
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Ethics Behind Stem Cell Research. Is Stem Cell Research ethical? Yes‚ it is. An embryo which is four or five days old‚ from which stem cells are derived‚ is not a human being yet‚ because it’s brain is nonfunctional and it’s heart is not beating. So destroying it would not be murder‚ it’s just a beginning of a long process of obtaining stem cells from it. Ronald Reagan‚ The Ethics Committee of the American Society for Reproductive Medicine‚ Christopher Reeve‚ Michael J. Fox and various writers
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Biology 260: gENETICS | CROSSES OF SORDARIA | Sordaria of Tan and Grey Allele | | Abstract: To understand the details of genetic behavior‚ Sordaria fimicola is used in this study by observing the asci produced from monohybrid and dihybrid crosses with observance to recombination. This experiment performed extended over a three week period. The strains that were used from S. fimicola were wild type producing black‚ and mutants producing grey and tan strains. There are seven possible phenotypes
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