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| Proponent"Gregor Mendel", austraiam scientist/Augustinian friar, July 20, 1822-1884, rediscovered by Hugo De Vries for his puzzle of heredity 1900 |
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| trait coded for by one gene with 2 allele |
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| Each individual has 2 alleles for a trait (1 from each parent), a monohybrid cross ratio |
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| Law of Independent Assortment |
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| Alleles for different trait, inherited independently of each other,applies when gens are different chromosomes/far aprt on same chromosome, Dihybrid cross ratio |
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| When 2 different alleles are present, one can mask the expression of other, |
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| Non Mendelian Inheritance |
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| Neither allele is fully dominant, blended |
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| Both allele are expressed equally, both traits visibly expressed, without overshadowing the other |
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| presence of more than 2 possible alleles in a population. "More than 2 Alleles in a population" |
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| influenced by multiple genes. Ex: height, Skin Color |
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| pigment by specialized cells "Melanocytes" pale skin has less melanin than darker skins, determine color/tone of skins, hair, iris of th eyes. |
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| yellow or red hue, lighter color |
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| The day Gregor Mendel entered the monastery of St. Thomas in Brunn |
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| His work was discovered by |
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| Marvel of Peru/ 4 o’ clock flower |
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| Examples of Polygenic trait |
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| produce no antigen, is recessive to both IA and IB |
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