1-Mendelian Geneticssprg08

1-Mendelian Geneticssprg08 - Mendelian Genetics Why Mendel?...

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Mendelian Genetics Chapter 3 Why Mendel? o First to systematically apply the scientific method to the study of genetics 0. Observation 1. Hypothesis based on observations 2. Experiments designed to test the hypothesis 3. Development of explanatory theory 4. Use additional experiments to test and refine the theory Keys to Success o The garden pea was an ideal organism for study 5. easy to grow, selectively cross fertilize, large number of offspring o Mendel established "pure-breeding" lines for use o Mendel used traits with alternative forms Terminology o Gene 6. a basic unit of biological information o Alleles 7. alternative forms of a single gene o Locus 8. a designated location on a chromosome o Genotype 9. the actual genetic makeup of an individual o Phenotype 10.a observable characteristic o Heterozygous 11.A genotype in which the two copies of the gene that determine a particular trait are different alleles o Homozygote 12.A genotype in which the two copies of the gene that determine a particular trait are the same allele o Reciprocal crosses 13.Crosses in which the phenotypes of the male and female parents are reversed Monohybrid crosses o crosses between parents that differed in a single characteristic
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1-Mendelian Geneticssprg08 - Mendelian Genetics Why Mendel?...

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