ANT101H5 Lecture Notes - Lecture 3: Mutation, Macroevolution, Genetic Drift
Document Summary
Ant101 lecture 3 evolutionary theory & Provided mechanism of natural selection by breeding experiments with peas (plants) Determined how one trait passed form one generation to the next. He found when he crossed tall plant x with short plants: he got all tall plants aka first generation. He crossed tall plants x with short plants. Principle of segregation: each unit pair separates in gamete production, so that each gamete contains 1 member of each pair. Heterozygous: 2 different traits but one is dominant. Recessive: trait not expressed in the heterozygous state. Dominant: trait expressed in the heterozygous state. Genotype: hidden genetic makeup of trait (ex. , big t or little t) Phenotype: traits that are visible (ex. , tall/short) A portion or small segment of dna molecule. Has several base pairs to direct the production of a certain protein. Sides made up of 2 strands of sugars and phosphate. Connected by 4 base pairs (at, gc)
