notes nuclei within cells
develope the cell theory ( all animals and plants are made up of cells )
published the origin of species.
published the results of his investigations of the inheritance of factors in pea plants.
discovered heredity materials that was in the nucleus
independently described the behavior of sex chromosomes , xx determines female ; xy determines male
identifies nucleic acids as the active principle in bacterial transformation.
shows that the four nucleotides are not present in nucleic acid in stable proportions.
discovers homeotic regulatory genes.
project presents their preliminary results.