BIO 200 Lecture 44: Lecture Guide3
28 Nov 2017
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What darwin didn"t know: mendel and basic genetics. Gregor mendel and the collapse of the blending model. Mendel"s five element model and the principle of segregation. Hypothesis of blending inheritance - gametes contained hereditary determinants (genes) that blended when the gametes fused during fertilization - offspring would be intermediate between the two and determinants for two parental characteristics would be lost. Hypothesis of particulate inheritance proposed that each determinant had a physically distinct nature - when gametes fused in fertilization the determinants remained intact - offspring would still contain the determinants for the two characteristics. Ease of cultivation, feasibility of making controlled crosses, pea flowers have both male and female sex organs which can be used to self fertilize, small, easy to grow, short generation time, lot of data very quickly. When they reproduce all off-springs look like the parents. Particular form of character (character is an observable physical feature)
