BIO 101 Lab 5 Mitosis SUMMER 2024

Lab Report Format Expectations Utilize college level grammar and professional formatting when completing this worksheet. Pre-Lab Questions 1. Chromosomes are made primarily of what two components? Be specific. DNA, which contains genes and protein that helps to organize DNA 2. What are the differences between mitosis and binary fission? Identify at least one difference, and explain why it is significant. The main difference between mitosis and binary fission is that mitosis occurs in eukaryotic cells, while binary fission occurs in prokaryotic cells. This difference is significant because it reflects the distinct processes in different cell types. 3. Cancer is a disease related to uncontrolled cell division. Investigate two known causes for these rapidly dividing cells. Cancer cells divide rapidly due to their loss of contact inhibition. While normal cells stop dividing when they are too close together, cancer cells continue to grow randomly and continuously in a petri dish. Additionally, cancer cells have the ability to lengthen their telomeres instead of shortening them, and they do not undergo apoptosis, allowing them to divide indefinitely. In some cases, mutations in genes that control cell division can be inherited, and environmental toxins can also lead to mutations.