BIOL 102 Lecture Notes - Lecture 24: Gregor Mendel, Blending Inheritance
Document Summary
Many people in the nineteenth century believed in blending inheritance, in which traits in the offspring resemble the average of those in the parents. For example, the offspring of plants with blue flowers and those with red flowers should have purple flowers. Although charles darwin believed in natural selection, he also believed in blending inheritance. He was never able to reconcile these two theories but understood that they conflicted. Gregor mendel made a revolutionary discovery that proved blending inheritance was not the correct model: it is genes (not traits) that are transmitted in inheritance. Principles of segregation: individuals inherit two copirs of each gene, one from the mother and one feom the father ( look at the slide) He opened each flower early in its development and removed the anthers (male parts). Mendel then deposited pollen from the plant. The parental feneration is referred to as the p1 generation. The first offspring are referred to as the f1 generations.
