Week_3_Discussion_Outline

Week_3_Discussion_Outline - Week 3 Key Words Readings: BA...

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Week 3 Key Words Readings:  BA 3; MPBA 3 Keywords: Hybrid Phenotype/Genotype Dominant/Recessive Homozygous/Heterozygous P1/F1/F2 generations Gene/Locus/Allele Gamete/Zygote Phenotypic/Genotypic Ratio Punnett square Mendel Law of Unit Inheritance Law of Segregation Blending Theory Di-hybrid Cross Law of Independent Assortment Linkage Closely-linked/Loosely-linked/Unlinked  Alleles Topics: I. Mendel’s Experiments II. III. Punnett Square IV. Mendel’s Experiments – Di-hybrid Crosses V. Mendel’s Conclusions  VI. Linkage I. Mendel’s Experiments: Father Johann Gregor Mendel (1822-1884) He Proposed:   Principles of inheritance Paired hereditary factors Hybrids : had an interest of traits in  hybrids  (offspring of parents with dissimilar traits) Mendel Cont.: expressed trait reliably assumed true hereditary traits 1
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each trait had two variants no knowledge of genotype and phenotype looked at successive generations Mendel’s Plan: First Cross between plants that are true bred for particular traits the example here is of cross between different strains for seed color (yellow, green) 2
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Result hybrid offspring exhibit only one of the purebred parental traits in this case phenotype, of the “first filial” of F1 generation is fixed for the yellow seed color Second Cross allow F1 plants to self-fertilize Result
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Week_3_Discussion_Outline - Week 3 Key Words Readings: BA...

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