quantitative Ames test is similar to the spot-overlay Ames test‚ except that the mutant Salmonella tymphimuium (which cannot composite histidine) is treated with various concentrations of the mutagen Diet Coke to view which sections of the Davis Minimal Agar Plate form colonies (Bjeldanes‚ et al. 1982). Mutagenicity has been known to be carcinogenic and that can cause a toxicological effect that presents a potential health risk for humans ( Resende‚ et al. 2012). The purpose for doing this experiment
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the shape and gram stain of the bacteria pictured. Think on this one! Name the gram stain and shape of the bacteria pictured. Name the genus of the organism pictured. Note the size when determining the organism. Identify this type of agar. We use this agar to check for _______. Name This Technique. What is its purpose? What type of hemolysis is pictured below? Identify the Following I go straight from the 4x objective to the 100 x objective? Why? Identify the Following Identify the
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are used for two reasons. Firstly‚ the slant can be used to make sure that there is no contamination from the Nutrient Agar plate. Secondly‚ the second slant will become a stock culture to prevent the shortage of slants during performing the series of tests. Kliger’s Iron Agar tests can be used to determine multiple characteristics of unknown microorganism #17. Kliger’s Iron Agar slants also contains a pH indicator‚ phenol red‚ which can be used to test the presence of fermentation. If there is a
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Went’s experiment but the agar block was placed on one side of the plant and not in the middle. This caused the plant to grow curved. This is because the auxin went all to one side causing it to grow. One side growing faster then another causes the plant to bend. Gravity can cause an unequal amount of auxin. When a tip of a coleoptile is put on an agar block evenly both side of the block will get equal amounts of auxin but if you were to tip the 90 degrees one side of the agar block would receive more
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The unusual members of NFGNB represent a challenge for the routine clinical microbiological laboratories‚ owing to their complex identification along with their unpredictable antimicrobial susceptibility patterns 14. The isolation rate of NFGNB (18.7%) recorded in our study comes in agreement with a previous Indian study carried out in a tertiary care hospital‚ where it was 16.18% 15. Whereas‚ it comes higher the result recorded in another Indian tertiary care hospital where it was 9.32% 16. The
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the streak‚ meaning that the organism could not use the starch and therefore no starch utilization. The Pseudomonas-F agar was viewed in the dark under UV light and fluoresced a yellow pigment‚ meaning production of pyoverdin and a positive on fluorescent pigmentation. The organism was capable of lipase production as the streak had a clear zone around it in the spirit blue agar‚ meaning the lipase reagent in the medium was degraded and utilized. The gelatinase test showed no clearing on the strip
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Microbial analysis of soil‚ of top layer from selected sites of Area near Dahisar River Saika N. Esani University of Mumbai (Email – saikae@ymail.com) Abstract: soil samples were collected fortnightly from area near Dahisar River‚ A river in suburb of Mumbai. laboratory analysis started from July 2010 to September 2010. Total bacterial and fungal count were estimated by standard spread plate isolation. Isolated bacteria were subject to colony characterization and were estimated by their
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pUC18‚ respectively. Two LB/Amp agar plates were treated in the similar way. The GVM agar plates was inoculated with A.fischeri. Between each streak‚ the inoculating loop was sterilized by placing above the
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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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biasanya dituangkan dalam suatu tindakan realistis yang digunakan untuk mencapai goal yang telah ditetapkan. Dalam dunia bisnis‚ jika suatu perusahaan ingin mencapai misi maupun visinya maka perusahaan tersebut harus memiliki daya saing strategis agar dapat bertahan di pasar yang kompetitif. Daya saing strategis (strategic competitiveness) dapat dicapai apabila sebuah perusahaan berhasil merumuskan serta menerapkan suatu strategi tersebut dan perusahaan pesaing tidak secara berkesinambungan menerapkannya
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