Ch 12 Rg F07

Ch. 12 Reading Guide DNA and RNA Ch. 12­1 DNA 1. Define all highlighted/bold terms. 2. Describe Griffith’s research. 3. What did Avery and others discover? 4. Describe the Hershey­Chase experiment. 5. What the components of DNA? 6. What are Chargaff’s rules? 7. Look at figure 12­6, why was this image important in explaining the structure of DNA? 8. How did Franklin’s discoveries help Watson and Crick? Ch. 12­2 Chromosomes and DNA Replication 1. Define all highlighted/bold terms. 2. Compare DNA structure in prokaryotic and eukaryotic cells. 3. Draw and label figure 12­10. 4. Draw and label figure 12­11. 5. Describe how DNA replication occurs. Ch. 12­3 RNA and Protein Synthesis 1. Define all highlighted/bold terms. 2. List and describe the 3 types of RNA. 3. Describe how Transcription occurs. 4. How can you determine the amino acid sequence form the mRNA? 5. Describe how Translation occurs. 6. What the differences between RNA and DNA? Ch. 12­4 Mutations 1. Define all highlighted/bold terms. 2. What is the significance of mutations to living things? Ch. 12­5 Gene Regulation 1. Define all highlighted/bold terms. 2. How are lac operons turned off and on? 3. Describe how most eukaryotic genes are controlled.