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Genetically modified plants in relation to solving the issue of global climate changes
Nedělová, Jana ; Opatrný, Zdeněk (advisor) ; Drda Morávková, Alena (referee)
The theoretical part of the diploma thesis summarizes basic facts related to the global climate change and provides up-to-date knowledge on the issue of genetically modified plants more resistant to stress factors of environment, including specific examples of strategies regarding preparation of genetically modified plants resistant particularly to abiotic stress. Although genetically modified plants and global climate changes belong to very important and current issue which public and foremost young generation should be sufficiently aware of, contemporary biology books and high school framework educational program pay to the issue very little attention. Therefore, the goal of this thesis is not only to summarize the basic facts and current knowledge regarding this issue but mainly to handle the issue in didactic level in the form of activating learning tasks. There were 28 learning tasks created in the thesis that gradually in unconventional way familiarize students with the issue of genetically modified plants and with the impacts of climate changes. Students must actively acquire information from accompanying materials to address the tasks properly, think critically over them, utilizing acquired knowledge and experience from the past to some extent. Fourteen tasks were chosen from the file created which...
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Biofortified plants and plant molecular farming
Koblihová, Kateřina ; Opatrný, Zdeněk (advisor) ; Pavlová, Libuše (referee)
Genetically modified crops (GM crop) are plants which have changed their genotype by molecular-genetic techniques. Targeting interventions into plant genotype have higher efficiency in comparison to methods, which are used in classical breeding. Essential presumption of these interventions is profound knowledge of molecular biology, genetics and plant physiology. The success of genetic modifications is dependant upon increasing knowledge from many branches of biology. The first generation of GM crops was resistant to abiotic stress, pests, herbicides or diseases. The outcome of this is increase of yields and overall decrease of costs. These qualities bear profit especially for farmers but not for end-users. Many methods, which are used for transformation of the first generation of genetically modified crops, are used for next generations as well. Biofortification could be considered as the next step of genetic modification of crops. Plants, which are consuming, are improved by substances, which prosperous to the human body. They should partly substitute the variety of food and to help improve the nutrition, but they don't have curative effects. Molecular-genetic principles of their creation are very similar to molecular farming. Nowadays the molecular farming presents the top of genetic...
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Genetic Modified Organisms - Hope or Danger?
VLÁŠKOVÁ, Alena
My bachelor degree thesis deals with the modern phenomenon of genetically modified organisms (GMO). I have selected this subject as the GMO issue is highly topical and, in my opinion, fairly neglected in the Czech Republic. On one side, the benefits of organic food have been ever more emphasized and, on the other side, there are relatively many foodstuffs containing genetically modified components. However, it should be noted at this point that many consumers do not have the slightest idea about it. This is partly caused by the fact that consumers have little information about product compositions as labels often use very small and illegible fonts. The main objective of the thesis is to improve the awareness of genetically modified organisms. I have used an anonymous questionnaire survey to find out differences in the awareness about the issue among residents of the South Bohemian and Pilsen regions. The total number of distributed questionnaires was 100, i.e. 50 for each of the regions. The return rate of the questionnaires was 100 %. The respondents were selected at random. I have formulated 4 basic hypotheses in my research work. The first: The awareness of GMO is very low. This hypothesis has been confirmed. The second: The prevailing opinion among the respondents is that GMO are harmful. This hypothesis has been confirmed because most of the respondents (67 %) believe that GMO are harmful to health. The third: Most of the respondents do not primarily focus on the composition and origin of foodstuffs when they do the shopping. This hypothesis has not been confirmed because this type of information plays an important role for an ever increasing number of people. The fourth: When respondents do the shopping the price of foodstuffs is more important than the quality. This hypothesis has been rebutted because most of the respondents (74 %) do their shopping primarily based on the price and quality ratio. The results of this thesis may be further used for public education about GMO issues within a public discussion about the topic.
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