A program consists of 4 musical numbers and 3 speeches. In how many .pdf

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A program consists of 4 musical numbers and 3 speeches. In how many ways can the program be arranged so that it begins and ends with a musical number? Solution There are 4 musical numbers and 3 speeches AS begin and end musical numbers 2 musical numbers selected from 4 and put in the ends This can be done in 2(4C2) = 12 ways The remaining are 2 musical and 3 speeches. This can be arranged in 5! ways Hence total no of ways = 12 (5!) = 1440.

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A variety of media and culture conditions can be used to culture and identify Listeria monocytogenes. For each, characterize it as selective or differential. Solution Listeria monocytogenes is basically a soil-borne micro-organism. It has been found in various sources such as water, agricultural products, and in animals. Listeria monocytogenes has been known as etiologic agent of listeriosis, causing meningitis, encephalitis, septicemia and endocarditis in humans. various selective and differential methods were developed to isolate the Listeria monocytogenes species as follows Selective Incubation at 30 degree celsius Adding antibiotics such as nalidixic acid Adding high concentarion of salts such as lithium chloride and sodium chloride Adding antifungals such as amphotericin B Differential Adding pH indicator to detect ferementaion of rhamanose to acid Detecting beta heamolysis.

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A plant with a very extensive root system would be able to better absorb and store nutrients. True False. Solution Ans. True. Roots absorb water and inorganic minerals (nutrients like NH4+, phosphate, Ca2+, Zn2+, etc.). The rate of water and mineral uptake is directly proportional to the surface area of roots. So, as plants grow larger, they extend their roots for greater uptake of water and minerals. A plant with relatively smaller roots absorb water and nutrients less efficiently that the plant with extensive root system. The roots may also be involved in storage- greater is root surface area, greater is the storage..

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Why is it that bacterial ribosomes can begin translation before mRNA synthesis is completed, but eukaryotic ribosomes cannot? a. mRNA splicing occurs very quickly in prokaryotic cells. b. In prokaryotes, transcription and translation take place in the cytoplasm. c. Prokaryotic mRNAs are elongated differently from eukaryotic mRNAs. d. Prokaryotic mRNAs are synthesized with ribosomes attached. Solution Answer is b. In prokaryotic organisms there is no nuclei, so both transcription and translation occur in the same place that is Cytosol. Moreover, no post transcriptional modifications like caping and Tailing. Due to this the half life of Prokaryotic m-RNA is too small. Due to these two reasons, in prokaryotic organisms, translation start, before completion of transcription.

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summarizing the case #3 on facebook freedom of speech and giving additional source to support your answer Solution We will complete our review and update that the our User Operations team uses to evaluate reports of irreverence of our Community Standards around hate speech. To check that these guidelines reflect best practices, we will solicit feedback from legal experts and others, including representatives of the women\'s coalition and other groups that have historically faced recognition and understanding of the difference between one thing and another. A few months ago we began testing a new requirement that the creator of any content containing cruel and insensitive humor include his or her authentic identity for the content to remain on Facebook. As a result, if an individual decides to publicly share cruel and insensitive content, users can hold the author accountable and directly object to the content. the Anti-Defamation League’s Anti-Cyberhate working group and other international working groups that we currently work with on these issues to include representatives of the women’s coalition to identify how to balance considerations of free expression, to undertake research on the effect of online hate speech on the online experiences of members of groups that have historically faced discrimination in society, and to evaluate progress on our collective objectives. ..

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