A Cross-Age Study of the Understanding of Three Genetic Concepts: How Do They Image the Gene, DNA and Chromosome? |
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Authors: | Arzu Saka Lale Cerrah Ali Rıza Akdeniz Alipaşa Ayas |
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Institution: | 1. Fatih Faculty of Education, Department of Secondary Science and Mathematics Education, Biology Department, KTU, 61335, S??ütlü/Trabzon, Turkey 2. Fatih Faculty of Education, Department of Secondary Science and Mathematics Education, Physics Department, KTU, 61335, S??ütlü/Trabzon, Turkey 3. Fatih Faculty of Education, Department of Secondary Science and Mathematics Education, Chemistry Department, KTU, 61335, S??ütlü/Trabzon, Turkey
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Abstract: | The study was carried out with 175 Turkish students by using drawings at different ages understanding of gene, DNA and chromosome concepts. Students from 8th, 9th, 11th grades and, science and biology student teachers were simply asked to draw the structure of gene, DNA and chromosome in a cell and also to give explanations about these three concepts. Differences in understanding between the age groups were found to be significant for the concepts of gene and DNA. None of the groups exhibit sound understanding and regardless of the age levels, students in all groups had alternative ideas about the three concepts investigated. |
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Keywords: | Images genetic concepts students of different ages |
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