Why is it important to lower the temperature of the chicken liver at the initial stages of isolation?
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Why is it important to lower the temperature of the chicken liver at the initial stages of isolation?
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- Which of the following best describes the control group for this experiment? a) mating between male flies raised on maltose medium and female flies on starch medium.b) mating between male and female flies raised on starch medium in different populations.c)mating between female flies raised on maltose medium and male flies raised on starch medium.What are the purposes of Suppositories dosage form? Please briefly explain at your own words.Is it important to have fewer phages than bacterial host cells when doing a quantitative plaque assay? Explain.
- What is the point of doing a modified Furter-Meyer Test? What is the underlying idea of this test? How did you figure out that this test had a positive result?After sequencing E.coli ROAR340 strain and using Silico Clermont Phylotyper tools show that is it belongs to group B2 that has chuA, TspE4 and yjaA genes. Is ROAR340 pathogenic?Explain why gene mapping is important and how this technique can be used in diseaseinvestigation? (Answer within 250-500 words only)
- Why is it important to kill all the bacteria in the raw sewage during phage isolation?Using blue-white selection, explain how to discriminate against bacteria with self-ligated vectors. Use X-gal and LacZ in the explanation.DNA from a strain of Bacillus subtilis with genotype a+ b+ c+ d+ e+ is used to transform a strain with genotype a− b− c− d− e−. Pairs of genes are checked for cotransformation, and the following results are obtained: Pair of genes Cotransformation Pair of genes Cotransformation a+ and b+ No b+ and d+ No a+ and c+ No b+ and e+ Yes a+ and d+ Yes c+ and d+ No a+ and e+ Yes c+ and e+ Yes b+ and c+ Yes d+ and e+ No On the basis of these results, what is the order of the genes on the bacterial chromosome?