Techniques for Isolation of Pure Cultures Objective : i. To perform the spread plate and the streak plate inoculation procedure for the separation of the cells of a mixed culture so that discrete colonies can be isolated. ii. To prepare a stock culture of an organism using isolates from the mixed cultures prepared on the agar streak-plate and/or the spread plate. Introduction : In order to be able to adequately study and characterize a certain microorganism‚ microbiologists need to separate
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Word classes and phrases There are eight word classes‚ or parts of speech‚ that are distinguished in English: nouns‚ determiners‚ pronouns‚ verbs‚ adjectives‚ adverbs‚ prepositions‚ and conjunctions. (Determiners‚ traditionally classified along with adjectives‚ have not always been regarded as a separate part of speech.) Interjections are another word class‚ but these are not described here as they do not form part of the clause and sentence structure of the language.[1] Nouns‚ verbs‚ adjectives
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biological research‚ an ethical public discourse has ensued over the use of animal testing by pharmaceutical companies‚ universities‚ farms‚ medical schools‚ defense departments‚ and commercial establishments among other institutions (Jones‚ 2013). In this case‚ animal testing refers to the utilization of invertebrates and non-human vertebrates as test objects for products destined for human use. For example‚ animal testing can be used to evaluate safety and potency of medical treatments and toxicity
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LET 104 The Study of English Grammar Lecturer: Dr. Omer Hassan Ali Mahfoodh Name : Gan Kenn Vun Matrix No. : 117454 IC No. : 920423065589 Deadline for the Assignment : 7 May 2013 Acknowledgement I wish to express my heartfelt thanks to Dr. Omer for
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Animal testing benefits human health. Medical research involving animals has dramatically improved the health of the human race over a significant period of time. Advances in antibiotics‚ insulin‚ and other drugs have been made possible through research done on animals. Despite these benefits‚ some people believe that animals should be not be used for testing medical techniques and drugs. In order for scientists to create new drugs‚ that help cure diseases‚ they have to be able to test them. Scientists
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Software Testing Carnegie Mellon University 18-849b Dependable Embedded Systems Spring 1999 Authors: Jiantao Pan mailto:%20jpan@cmu.edu Abstract: Software testing is any activity aimed at evaluating an attribute or capability of a program or system and determining that it meets its required results. [Hetzel88] Although crucial to software quality and widely deployed by programmers and testers‚ software testing still remains an art‚ due to limited understanding of the principles of software
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Chapter 4 TEST OF GRAMMAR AND USAGE Most common types of objective tests 1. Multiple choice items 2. error – recognition 3. rearrangement items 4. completion items 5. transformation items 6. items involving the changing of words 7. ‘ broken sentence’ items 8. pairing and matching items 9. combination items 10. additional items The goal: testing ability to recognize and produce the correct forms of language ( rather than the ability to use L in actual and purposeful tasks of communication)
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RUNNING HEAD: MIDTERM Midterm Jessica M. Morgan Kaplan University CJ210-01 Professor Richard Niebusch September 28‚ 2010 There are several techniques pertaining to the investigative methods of inquiry‚ all of which are extremely helpful in performing an investigation. These approaches include surveillance‚ the tenacity method‚ intuition method‚ infiltration‚ and other exploratory processes. Systematically observing the person of interest is important. This is where surveillance plays
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Common English Usage and Grammar Errors Please do not make the following common errors (for a complete list‚ please see http://www.wsu.edu/ ~brians/errors/errors.html): Possessive Pronouns it its (not it’s‚ a contraction of it is; note: there is no such word as its’) you your (not you’re‚ a contraction of you are) they their (not they’re‚ a contraction of they are) who whose (not who’s‚ a contraction of who is) Other Common Errors everyday (adjective) vs. every day (noun) lead (present
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Comprehensive Grammar CheckPoint Answer Key‚ Due in Week Eight Correct answers are in red. Inclusive Language: Nonsexist A. I understand Dr. Maurice hired a new nurse. What is her name? B. I understand Dr. Maurice hired a new nurse. What is his or her name? Correct answer 1. B is correct: The second sentence is a gender stereotype. Many nurses are women‚ but some nurses are men. Inclusive Language: Nonsexist A. I’m not very good at math. B. I’m not very good at math because I’m
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