Biology 1001A Lecture Notes - Lecture 10: Gynoecium, Phenotype, Mendelian Inheritance
25 Aug 2016
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Until the 1900s people believed in the blending theory of inheritance hereditary traits blend evenly in offspring through mixing of the parents" blood. Mendel is considered the father of genetics. He studied heritable characteristics called characters i. e. flower colour or seed shape: a variation in a character is called a trait. Characters are passed to offspring in the form of genes. Mendel observed that rather than blending evenly, many parental traits appear unchanged in offspring, disappear in one generation and reappear in the next: these inheritance patterns are a result of the segregation of chromosomes during meiosis. 10. 1a mendel chose true-breeding garden peas for his experiments. Mendel used garden peas for his experiments. Sperm nuclei in pollen fertilizes egg cells in the carpel of the same flower: mendel prevented self-fertilization by cutting of the anther. Mendel used cross-pollination pollen to fertilize one pea plant came from a different plant.
