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VII. DNA/ GENES/ AND GENETICS Describe the relationship between amino acids, genes, and an organisms characteristics. Why can’t one cell in a multi-cellular organism function independently of that organism? Even though all cells in an organism contain the same genes, they can vary greatly in structure and function. How is this possible? What mechanism do cells use to turn genes on and off? Give examples of emerging biotechnologies. What modern technologies are currently being implemented to determine evolutionary relationships among species? How are viruses used to treat disease? How can over exposure to sunlight cause skin cancer? Describe the structure and function of the DNA molecule. What property of DNA allows it to be copied accurately? Where is the hereditary information located? How is it possible for a single gene to influence more than one trait? How may crops be genetically modified to improve yield? Will all mutations in an organism’s DNA result in a harmful way? What type of genetic mutation causes sickle cell anemia?