Use the graph above to respond to the following statement. Identifythe three most abumndand elements found in living things. The large size of many fruits and flowers is the result of polyploidy, a condition in which the nuclei of an organism's cells contain extra sets of chromosomes. Polyploidy often occurs naturally, but it can also be artificially induced by plant breeders. How have breeders been able to mimic a naturally occurring phenomenon? Researchers have determined that the chemical colchicine suppresses cell division by preventing the formation of spindle fibers. Without these fibers, the sister chromatids cannot become properly oriented for separation into individual nuclei. In effect, mitosis is stopped after prophase. However, the cell may continue to make copies of its chromosomes. As a result, the nucleus of the cell contains multiple sets of chromosomes. Suppose a researcher wished to investigate how extra sets of chromosomes are produced. First, she treated two onion roots with a colchicine solution and left two roots untreated. After a period of several days, she placed thin slices from each root tip on separate slides, stained the specimens, and examined the slides under a microscope at high power. If the researcher finds only cells in interphase and prophase in the slides of treated onion root tips, what might be her interpretation