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Ap Bio Chapter 16 Guided Reading Assignment Answers

Unformatted text preview: arrangement”? 14. Define the following terms: a. Leading strand b. Lagging strand c. Okazaki fragments d. DNA ligase e. Primer 15. Label the diagram below: Page 3 of 6 Adapted from L. Miriello by S. Sharp 16. Identify and label the diagram below: 17. List the functions of the following enzymes: a. Helicase b. Single stranded binding protein c. Topoisomerase d. Primase e. DNA Polymerase III Page 4 of 6 Adapted from L. Miriello by S. Sharp f. DNA Polymerase I g. DNA Ligase 18. Identify and label the diagram below: 19. What is mismatch repair? 20. Label the diagram below: Page 5 of 6 Adapted from L. Miriello by S. Sharp 21. Why is there a short section of a cell’s DNA that cannot be repaired or replaced? Draw your own diagram explaining the problem. It is very important that you understand this conceptually. 22. What are telomeres and why are they important? How does telomerase play a role? Page 6 of 6...
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Chapter 13 Guided Reading Assignment 1. Explain Griffith’s experiment and the concept of transformation in detail.2. What did Avery, MacLeod and McCarty contribute to this line of investigation?3. What is a bacteriophage?4.Label the diagram below and explain the Hershey Chase experiment.5. How did Chargraff’s work contribute to understanding the structure of DNA?6. Why was Rosalind’s Franklin’s work essential to the understanding of the structure of DNA?Griffith had two strains of the bacterium, a pathogenic one and a nonpathogenic strain. He was surprised to Fnd that when he killed the pathogenic bacteria with heat and then mixed the cell remains with living bacteria of the nonpathogenic strain, some of the living cells became pathogenic. Avery puriFed various types of molecules from the heat-killed bacteria, then tried to transform nonpathogenic bacteria with each type. Only DNA worked. ±inally, in 1944, Avery and his colleagues McCarty and MacLeod announced that the transforming interest was DNA.A bacteriophage is a virus that infects bacteria, and only infects a speciFc host cell.He reported that DNA composition varies from one species to another, which accounts for the genetic variation found between diferent species. He also found a peculiar regularity in the ratios of nucleotide bases within a single species. The DNA composition changes from species to species, but it is consistent within the same species.

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