POLS 250 Lecture Notes - Lecture 5: Allele, Zygosity, Phenotype
Document Summary
Pre-mendel beliefs about traits: offspring usually but not always take on traits of parents, why and how this happens was a mystery, blending is typically the way traits are passed on. Selected several traits and then crossed them: f1: out of 5,475 plants with all the fathers smooth and all the mothers wrinkled, the peas all turned out smooth, f2: bred all f1 with all smooth. Some of each were produced. (no blending: f3: wrinkled and smooth. All the offspring of the wrinkled turned out wrinkled. Of the smooth, there was a mix of smooth and wrinkled. Allele: a version of a gene. (one letter) (c) Genotype: the letters that make up your gene.
