Consider the claim that 60% of the members of a population of bacteria have a plasmid conferring antibiotic resistance. If we collected 11 bacterial samples and 4 proved to have the resistance plasmid, what would the P-value of a binomial test of this hypothesis be? 0.1401 0.0701 0.0666 0.3636
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- The graphs show a spectrum of antibiotic-resistant organisms, from 1 to 11, where 1 is the least-resistant and 11 is the most resistant. Notice that before the population replicates (graph on the left), there are no bacteria with resistance 2 or 3, OR 11. But after the population replicates, there are some bacteria with these resistance levels, indicated by the yellow arrows. Which of the following explains the origin of the bacteria pointed at by the yellow arrows? A mutations that happen when the cells in the population replicate their DNA and divide in two B some bacteria just shift one way or the other. C bacteria learn how to become more resistantWhat is the endosymbiotic theory? Discuss two lines of evidence that support the theory.You are viewing a new organism at 1000x. You calculated that 1 O.U. =1.3um. It is 8O.U. long How many um is your organism?
- The GC content of Micrococcus is 66 - 75% and of Staphylococcus is 30-40 % moles, from this information would you conclude that these organisms are related? Include an explanation of why GC content is a viable method by which to identify the relatedness of organisms. – In your explanation of “why”, include information of why we are able to use genetic techniques to identify organisms or determine their relatedness, and specifically why GC content can help determine these. Keep answer between 2-3 sentencesThe GC content of Micrococcus is 66 - 75% and of Staphylococcus is 30-40 % moles, from this information would you conclude that these organisms are related? Include an explanation of why GC content is a viable method by which to identify the relatedness of organisms. – In your explanation of “why”, include information of why we are able to use genetic techniques to identify organisms or determine their relatedness, and specifically why GC content can help determine these.An inter-strand grouping of students is working on a study about the Copper-infused materials utilization for real environment viruses and bacteria to address good health and well-being of the target beneficiaries. They want to compare the utilization and non-utilization of copper infused materials if it will yield the same results when introduced to reduce bacterial contamination. QUESTION: Will the choice of sampling technique affect the statistical test to be used? Also, what is the appropriate statistical test to use and why?
- Choose the one answer that fits best. Which of the following statements regarding bacteria is NOT correct? a. During conjugation, two bacteria exchange genetic information directly via pili b. Bacterial populations have a higher mutation rate because their DNA Polymerases do not have proofreading capability c. Bacterial growth by binary fission is exponential and each division usually takes only a couple of hour or less d. Plasmids carry just a few genes and are replicated independently from the bacterial chromosome e. Cocci that are arranged in clusters/bunches are called staphylococciYou perform a plaque assay with your bacteria and serial dilutions of your bacteriophage, , and then count the plaques. In the 10-5 dilution you have 318 plaques. In the 10-6 dilution, you count 32 plaques, and in the 10-7 dilution, there are 3 plaques. What is the approximate PFU/cell of your sample? 3.2 x 105 318 3.2 x 107 O 3.2 x 106In the table, you have to identify the character for Genus Identification of the Cyanobacterium E (see image). Thank you. You did not answer what was asked in the table above, you only defined or gave the meaning of the morpho-cytological characteristics which was not asked.
- The bacterium Agrobacterium infects plants and causes plant cells to develop tumorlike cellular structures and begin synthesizing sets of proteins that protect the bacterium from the plant immune response, as well as synthesize nutrients that can be used exclusively by the bacterium. Researchers testing the efficacy of two new antibiotic treatments against Agrobacterium are tasked with designing an experiment to test their effectiveness. Which of the following describes the most appropriate control group in this experiment? A B с D a group of infected and untreated plants of the same species a group of uninfected and untreated plants of a different species a group of infected and untreated plants of a different species a group of uninfected and untreated plants of the same speciesDescribe the principle of "Whole Mount In Situ Hybridization" and explain why it is said to be a qualitative method. Use the editor to format your answerParagraph Drawing The previous scenario is a greatly-simplified demonstration of how antibiotic resistance is selected for in bacteria. It assumes bacterial cells are either totally resistant (BR+, red cells) or completely susceptible (BRo, yellow). In reality, just like people differ in height, with many different heights possible, bacteria in a population can differ along a whole spectrum of resistance. Drag and Drop these labels on to the graph. One label will not be used Least Resistant Use of Use of brincomycin selects AGAINST brincomycin selects FOR these cells these cells Spectrum of Resistance Number of cells Most Resistant Notes Comments 33°F