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This Concept Map, created with IHMC CmapTools, has information related to: Haven_HOA1_Mendelian Genetics, 1856 - 1865 Gregor Mendel Began conducting a series of experiments with Pisum sativum. Here he crossed approximately 28,000 pea plants to observe the effects of different generations and their blending. He published his findings in a paper in 1866 (Experiments on Plant Hybridization) detailing what he had learned. ???? He concluded that every trait must be "controlled" by two "elements" (now called genes.) The outcome of a particularly cross deepened on how the elements of two parents combined in an offspring. He then started crossing plants with more than one trait such as is seen with a dihybrid cross. (For example round and yellow peas crossed with wrinkled green peas.), 1761 Joseph Kölreuter - German botanist who pioneered the study of plant hybrids and the first person to develop a scientific application to plant reproduction. ???? 1800s The heredity idea of "blending" the process of heredity becomes the dominate idea., 1761 Joseph Kölreuter - German botanist who pioneered the study of plant hybrids and the first person to develop a scientific application to plant reproduction. ????, ca 350 BC Aristotle - Dismisses Hippocrates because children do not always resemble parents, but does recognize the idea of the mixing of "fluids" ???? 1677 Leeuwenhoek - First to observe spermatozoa, upon further inspection he classified 30 different species. This lead to a belief in preformationism: The belief that that an organisms contains all future descendants in a miniatures form. Like Russian Nesting Dolls., 1856 - 1865 Gregor Mendel Began conducting a series of experiments with Pisum sativum. Here he crossed approximately 28,000 pea plants to observe the effects of different generations and their blending. He published his findings in a paper in 1866 (Experiments on Plant Hybridization) detailing what he had learned. ???? As he continued to these experiments he realized that the ratios that would come from these crosses was highly predictable., ca. 400 BC Hippocrates - Proposed that there are tiny particles in the body that create a blended child of his or her children. ????, ca 350 BC Aristotle - Dismisses Hippocrates because children do not always resemble parents, but does recognize the idea of the mixing of "fluids" ????, 1677 Leeuwenhoek - First to observe spermatozoa, upon further inspection he classified 30 different species. This lead to a belief in preformationism: The belief that that an organisms contains all future descendants in a miniatures form. Like Russian Nesting Dolls. ???? ????, 1677 Leeuwenhoek - First to observe spermatozoa, upon further inspection he classified 30 different species. This lead to a belief in preformationism: The belief that that an organisms contains all future descendants in a miniatures form. Like Russian Nesting Dolls. ????, 1677 Leeuwenhoek - First to observe spermatozoa, upon further inspection he classified 30 different species. This lead to a belief in preformationism: The belief that that an organisms contains all future descendants in a miniatures form. Like Russian Nesting Dolls. ???? 1761 Joseph Kölreuter - German botanist who pioneered the study of plant hybrids and the first person to develop a scientific application to plant reproduction., 1800s The heredity idea of "blending" the process of heredity becomes the dominate idea. ???? 1856 - 1865 Gregor Mendel Began conducting a series of experiments with Pisum sativum. Here he crossed approximately 28,000 pea plants to observe the effects of different generations and their blending. He published his findings in a paper in 1866 (Experiments on Plant Hybridization) detailing what he had learned., ca. 400 BC Hippocrates - Proposed that there are tiny particles in the body that create a blended child of his or her children. ???? ca 350 BC Aristotle - Dismisses Hippocrates because children do not always resemble parents, but does recognize the idea of the mixing of "fluids", 1856 - 1865 Gregor Mendel Began conducting a series of experiments with Pisum sativum. Here he crossed approximately 28,000 pea plants to observe the effects of different generations and their blending. He published his findings in a paper in 1866 (Experiments on Plant Hybridization) detailing what he had learned. ???? His methods were so highly scientific and advanced for his time that most scientists did not realize the true importance of his findings until decades later., As he continued to these experiments he realized that the ratios that would come from these crosses was highly predictable. ???? 1900s - Punnet describes the probability that Mendal developed through his Punnet square. This illustrates all possible genyotpic variations., 1856 - 1865 Gregor Mendel Began conducting a series of experiments with Pisum sativum. Here he crossed approximately 28,000 pea plants to observe the effects of different generations and their blending. He published his findings in a paper in 1866 (Experiments on Plant Hybridization) detailing what he had learned. ????