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Describe the structure of DNA using the following terms: nucleotides, double helix, complementary base pairing, hydrogen-bonding, sugar-phosphate backbone. Then, draw a diagram! The diagrams should be something along the lines of the diagram on the right, except much, much better! What exactly is meant by the expression complementary base pairing? Why must A always pair with T and C always pair with G? Rank the following in order of largest to smallest: nucleotide, DNA, chromosome, gene. Explain clearly the differences between genes and chromosomes. Explain how the structure of DNA and complementary base pairing promotes the continuity of life. What is replication? Describe DNA replication with reference to its three basic steps: unzipping, complementary base-pairing, joining of adjacent nucleotides. Use labeled diagrams to assist your explanation! What is RNA? How is it structurally similar to DNA, and how is it different? Describe the steps in the process of DNA transcription. List the 3 types of RNA List the function of each type of RNA. What is translation ? What three main phases is translation divided into? List the main events that occur during each of the phases of translation. The sense strand on a piece of DNA reads CCGTTAGGGCAAATTCGCTATTTTTT. What amino acids does this code for? Identify the role of DNA. Identify the role of mRNA Identify the role of tRNA Identify the role of ribosomes in the processes of protein synthesis. What are mutations? Define and differentiate between the two main types of mutations (chromosomal and gene). What are mutagens? Give examples of four environmental mutagens which can cause mutations in humans. Make up a DNA sequence to prove that the addition or deletion of a single DNA nucleotide can dramatically effect the structure and function of the resulting translated protein. How could this lead to a genetic disorder? Give two examples of genetic disorders, and explain what causes them. 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