BIOL 1108 Study Guide - Midterm Guide: Gel Electrophoresis, Human Body Weight, Allele Frequency
Document Summary
Charles darwin: author of, on the origins of species, published in 1859. Theory of natural selection: traits that enable survival are passed down more frequently. Phenotype: observable trait such as human weight or wing color in butterflies. 21. 1 genetic variation: genotype: set of alleles possessed by the individual, their environment. Populations genetics is the study of patterns of genetic variation. Humans rank low in overall genetic variation compared with other species. Species: consists of individuals that can exchange genetic material through interbreeding. Gene pool: all the alleles present in all individuals in the species. Includes alleles that cause differences in hair color, skin color, etc. Natural populations: interbreeding groups of organisms of the same species living in the same area. Mutation and recombination are two sources of genetic variation. Mutations can be. : somatic: occuring in the bodies tissues, germline: occuring in the reproductive cells and then passed onto future generations.
