PLSC 363 Chapter Notes - Chapter 11: Consanguinity, Dwarfism, Mutual Exclusivity
Document Summary
11. 1 mendel used the scientific approach to identify two laws of inheritance. Character - heritable feature that varies among individuals. Ex: flower color trait - each variant for a character. Ex: purple or white color for flowers. Mendel"s experiment: stamens = pollen-producing organs carpel - egg-bearing organ cross-pollination = take immature stamens of plant before pollen production and dust pollen onto another plant"s altered flowers true-breeding - produce same variety as parent plant only. Purple flower plants produce only purple flowers. Hybridization - crossing of two true-breeding varieties. F2 generation - offspring of f1 self-pollinated. P generation = 1 purple, 1 white. Alternative versions of genes account for variations in inherited characters. Homozygous - pair of identical alleles for a character. Heterozygous - organism that has two different alleles for a gene. Phenotype - organism"s appearance or observable traits. Monohybrids - heterozygous for one particular character. Law of independent assortment second law of inheritance track two characters.
