Genes - Genes Gradualism-evolution over time Natural...

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Genes Gradualism-evolution over time Natural selection Mechanisms of Inheritance: Mendel and his experiments with the garden pea plant Chromosomes and cell division: mitosis and meiosis All offspring have uniform trait after several generations, blended Blending Inheritance Gregor Mendel-particulate inheritance-underlying control of trait, large experiments, controlled crosses between plants, modern statistics, studied 7 dif. Traits w/ pea plants, easy to control pollination Pure breeding lines Conclusions of Particulate Inheritance : each hereditary characteristic is controlled by particulate unit factors, which exist in pairs in individual organisms: one factor is inherited from each parent These factors remain discrete, ie unchanged regardless of external appearance Dominant vs recessive traits, must be two copies of recessive factor present for a recessive form to be expressed Phenotype-the observable or detectable expression of a trait, green
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This note was uploaded on 02/13/2011 for the course ANTH 002 taught by Professor Grinker during the Fall '08 term at GWU.

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Genes - Genes Gradualism-evolution over time Natural...

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