BIOL 2081C Lecture Notes - Lecture 8: Dihybrid Cross, Chromosome, Heredity
Document Summary
Gregor mendel performed his genetic experiments using the pea plant as a model organism over 100 years ago, laying the foundation for much of modern genetics. Today, we revisit some of mendel"s work, with a particular emphasis on calculating the probability that a particular genotype or phenotype will be observed in offspring resulting from crosses involving mendelian traits. Learning objectives: for one gene, given the genotypes or phenotype of parents, apply the principle of segregation to predict the possible types of progeny and their expected proportions (both genotype and phenotype). Principle of segregation: the formation of gamete, the paired hereditary determinants separate in such a way that each gamete is equally likely to contain either member of the pair. 3:1: for two or more genes, given the genotypes or phenotype of parents, use the principle of independent assortment to predict the possible types of progeny and their expected proportions (both genotype and phenotype).
