In 1868, Mendel became abbot of the monastery and exchanged his scientific pursuits for his pastoral duties. Mendel’s choice of these kinds of traits allowed him to see experimentally that the traits were not blended in the offspring as would have been expected at the time, but that they were inherited as distinct traits. Discontinuous variation is the variation seen among individuals when each individual shows one of two-or a very few-easily distinguishable traits, such as violet or white flowers. Mendel worked instead with traits that show discontinuous variation. It does appear that offspring are a “blend” of their parents’ traits when we look at characteristics that exhibit continuous variation. Continuous variation is the range of small differences we see among individuals in a characteristic like human height. This hypothetical process appeared to be correct because of what we know now as continuous variation. Mendel’s work went virtually unnoticed by the scientific community, which incorrectly believed that the process of inheritance involved a blending of parental traits that produced an intermediate physical appearance in offspring. In 1866, he published his work, Experiments in Plant Hybridization, 1 in the proceedings of the Natural History Society of Brünn. He demonstrated that traits are transmitted faithfully from parents to offspring in specific patterns. In 1865, Mendel presented the results of his experiments with nearly 30,000 pea plants to the local natural history society. In 1856, he began a decade-long research pursuit involving inheritance patterns in honeybees and plants, ultimately settling on pea plants as his primary model system (a system with convenient characteristics that is used to study a specific biological phenomenon to gain understanding to be applied to other systems). Supported by the monastery, he taught physics, botany, and natural science courses at the secondary and university levels. Thomas in Brno in what is now the Czech Republic. As a young adult, he joined the Augustinian Abbey of St. Please forward them to us at you extend the curriculum, we would like to benefit from your creativity by adding your materials to ours, with appropriate attribution, and then making the expanded materials available to others.Johann Gregor Mendel (1822–1884) was a lifelong learner, teacher, scientist, and man of faith. We value feedback and suggestions for improvement. You may not describe your program as a partnership or collaboration with MIT or the MIT Edgerton Center. USE OF THE MIT NAME: In your advertising materials, you may say that your program uses curriculum developed by the MIT Edgerton Center, and where appropriate, provide a link to our home page. These materials can be adapted by individual teachers for their classroom, but the alterations to the MIT Edgerton Center materials cannot be redistributed beyond your school or host organization. Help others to find us by citing the MIT Edgerton Center website where much of the curriculum materials are available for download. You are free to copy and distribute our materials to teachers and students, provided that you acknowledge the source and retain any copyright statements on the materials. STEM Enrichment Modules are licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. These materials are copyrighted by the Massachusetts Institute of Technology.
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