insecticide was discovered‚ particularly for corn. In this new case‚ the organism itself is genetically modified for protection. This insect-resistant corn is the new Bt-corn and contains genetic material from the donor organism‚ a bacterium. Bacillus thuringiensis contains a protein that kills the larvae of Ostrinia nubilalis‚ European corn borers‚ but is harmless to other insects (Bessin‚ 1999). When the Bt is consumed by the larvae‚ toxins paralyze the insectfs intestines‚ eventually causing death
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to allow farmers to use a mixed group of two‚ three‚ or four different chemicals.[71] Pathogen resistance – insects or viruses Tobacco‚ and many other crops‚ have been generated that express genes encoding for insecticidal proteins from Bacillus thuringiensis (Bt).[19][72] Papaya‚ potatoes‚ and squash have been engineered to resist viral pathogens‚ such
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animals being utilized in animal by-products and thereby to reveal when these products contained ingredients originating from animals that had died of anthrax. The thermostable antigens involved are common to other Bacillus species so the test depends on the fact that the only Bacillus likely to have proliferated within and throughout an animal depositing extensive precipitating antigens in the tissues is B. anthracis. Procedure: 1. Chop or slice the specimen into fine pieces or strips. 2
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CONTENTS 1. What is Genetic modification? ................................. 3 2. What are genetically modified crops? ...................... 3 3. Objective behind the research. ................................. 4 4. A brief description. .................................................... 5 * Article- 1........................................................... 5 * Article- 2........................................................... 5 * Article- 3............
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The Effects of ECB on Corn Crop Yield Abstract In this experiment we explore the infestation of ECB (European Corn Borer) on different types of corn and how it effects the corn crop yield. The corn is grown in a controlled environment with the only changing variables being the type of corn and the concentrations of the infestation of the ECB. Varying levels of infestation are tested on a corn crop throughout a 140 day growing season‚ at the end of the season the crops are then measured for
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In recent history‚ many people have become wary of the infamous genetically modified organisms (GMOs)‚ which are commonly found in many foods and products‚ from corn to cotton. However‚ there are a series of documented dangers associated with GMOs and they have caused a divide between those who support GMOs and hope to reassure the consumer that GMO’s are safe‚ versus those who oppose GMOs and promote the removal of them from their favorite products. Despite strong arguments from both sides‚ there
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of genetic engineering to the forefront of the public consciousness. Among the reports‚ several have shown the relationship between GMO cytotoxicity as well as the teratogenic potential in mammals. Specifically the toxins glyphosate‚ and Bacillus thuringiensis (Bt) present a combined area of concern as these herbicide resins and insecticidal toxins are present in Roundup-tolerant GM plants such as corn‚ soybeans‚ canola‚ cotton‚ sugar beets‚ and alfalfa. Although some scientists believe that GM
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-1 Name: Lab 1: Dependent and Independent Variables Lab Results Table 1: Average Yield for each seed variety at no‚ low‚ and high infestation levels (8 points) Seed Variety Level of ECB Infestation Pot 1 Yield Pot 2 Yield Pot 3 Yield Average Yield BT 123 None 160.1 164.8 164.2 163.03 Low 164.0 162.6 168.3 164.97 High 155.1 163.0 163.9 167.67 BT 456 None 190 183.2 184.8 186 Low 178.8 172.6 179.6 177 High 157.3 157.0 159.0 157
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Microbiology Coursework: Bacillus cereus After investigation following on outbreak of food poisoning at a pizza restaurant‚ it was found that all suffers had consumed a portion of side salad from the self-service salad bar alongside their main dish. Subsequently‚ this was further traced to a rice salad. Environmental Health Officers investigating this outbreak suspected it may have been caused by Bacillus cereus (B. cereus). The presence of large numbers of B. cereus in a food is indicative
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pests‚ has been commercialized now for several years in the US and also in several other countries such as Canada‚ Germany‚ Spain‚ Argentina‚ Honduras‚ South Africa and the Philippines. (Wu‚ 2006) The prefix ‘Bt’ from Bt-Corn originates from Bacillus thuringiensis (Bt)‚ a species of soil bacterium that produces the insecticidal crystal protein or delta endotoxins‚ toxins that kill crop pests.
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