BIOL239 Study Guide - Midterm Guide: Lethal Allele, Pea, F1 Hybrid
22 Oct 2016
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Traits are passed on from one generation to the next. Artificial selection is purposeful mating between plants and animals, this makes them domestic, genetically ingrained characteristics (few variants in the gene pool) For example, dogs are domesticated wolves (most compatible wolves are bred), animals are considered individual species if they cannot interbreed, there is no hard-core definition for species. Artificial breeding for some purpose is used for man kind. Establishment of pure-breeding lines: offspring carry parental traits that remain constant from generation to generation, all hypothesis must come from true-breeding lines where offspring carries the same phenotype as their parents (purple always purple) Phenotype: observable characteristics determined by genotype, commonly referred to as traits. Genotype: genetic make-up, description of the genetic information carried by an individual. Mating of parents with antagonistic traits produces hybrids (yellow x green pea-> always yellow), this is the appearance of hybrid which is the dominant trait.
