Laboratory_11_Mendelian_Genetics

Laboratory_11_Mendelian_Genetics - Laboratory 11: Mendelian...

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Laboratory 11: Mendelian Genetics & Human Traits
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Objectives Reinforce the principles required to do simple monohybrid genetic crosses Background information on how Gregor Mendal developed his system Examine a variety of human genetic traits that exhibit simple complete dominance
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Gregor Mendel (1822-1884) Augustinian monk who taught natural science to high school students First person to trace the characteristics of successive generations of a living thing Most famous work was with pea plants
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Gregor Mendel (1822-1884) He found that the plants' respective offspring retained the essential traits of the parents, and therefore were not influenced by the environment. This simple test gave birth to the idea of heredity. It took seven years to cross and score the plants to the thousands to prove the laws of inheritance.
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Gregor Mendel (1822-1884) He saw that the traits were inherited in certain numerical ratios. Hereditary factors do not combine, but are passed intact. Some characteristics are ‘dominant’ while others are ‘recessive’
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Important Vocabulary Genotype – the genetic make-up of an organism Phenotype – the physical expression of the genotype Allele — alternative forms of a gene for each variation of a trait of an organism Dominant – gets shown over other genes Recessive – only gets shown if there are 2 of them
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Important Vocabulary Homozygous Dominant
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This note was uploaded on 08/08/2010 for the course BIO 100 taught by Professor Dr.dave during the Spring '08 term at E. Kentucky.

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Laboratory_11_Mendelian_Genetics - Laboratory 11: Mendelian...

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