LIFE 102 Lecture Notes - Lecture 11: Thomas Hunt Morgan, Meiosis, Wild Type
Document Summary
Mendelian inheritance has its physical basis in the behavior of chromosomes. Mitosis and meiosis were 1st described in the late 1800s. Mendelian genes have specific loci (positions) on chromosomes. The behavior of chromosomes during meiosis can account for mendel"s laws of segregation and independent assortment. The chromosomal basis of mendel"s law generations. Starting with true-breeding pea plants, let"s follow 2 genes through f1 and f2. The two alleles for each gene separate during gamete formation. Alleles of gene on nonhomologous chromosomes assort independently. Evidence associating a specific gene with a specific chromosome from thomas. Morgan"s experiments with fruit flies provided convincing evidence that. Morgan noted wild type (normal) phenotypes that were common in the fly. Correlating behavior of a gene"s alleles with behavior of a chromosome chromosomes are the location of mendel"s heritable factors populations. Morgan mated male flies with white eyes (mutant) with female flies with red eyes (wild type) The f1 generation all had red eyes.
