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Chapter 10 Outline

Chapter 10 Outline. 10.1 Genetic Material Possesses Several Ke y Characteristics, 26 8 10.2 All Genetic Information Is Encoded in the Structure o f D NA or RNA, 269 10.3 DNA Consists of Two Complementary and Antiparallel Nucleotide Strands That Form a Double Helix, 275

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Chapter 10 Outline

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  1. Chapter 10 Outline • 10.1 Genetic Material Possesses Several Key Characteristics, 268 • 10.2 All Genetic Information Is Encoded in the Structure of DNA or RNA, 269 • 10.3 DNA Consists of Two Complementary and Antiparallel Nucleotide Strands That Form a Double Helix, 275 • 10.4 Special Structures Can Form in DNA and RNA, 280

  2. 10.2 All Genetic Information Is Encoded in the Structure of DNA or RNA • Early Studies of DNA

  3. 10.2 All Genetic Information Is Encoded in the Structure of DNA or RNA • DNA as the Source of Genetic Information • The discovery of the transforming principle: • Dr. Griffith’s experiment with Streptococcus pneumoniae • The Hershey–Chase experiment

  4. 10.2 All Genetic Information Is Encoded in the Structure of DNA or RNA • DNA as the Source of Genetic Information • Watson and Crick’s discovery of the three-dimensional structure of DNA • X-ray diffraction image of DNA

  5. 10.2 All Genetic Information Is Encoded in the Structure of DNA or RNA • RNA as the Source of Genetic Information

  6. 10.3 DNA Consists of Two Complementary and Antiparallel Nucleotide Strands That Form a Double Helix • Primary structure of DNA • Deoxyribonucleotides • Nucleotides

  7. 10.3 DNA Consists of Two Complementary and Antiparallel Nucleotide Strands That Form a Double Helix • Secondary structure of DNA • The double helix • Hydrogen bond and base pairing • Antiparallel complementary DNA strands

  8. 10.3 DNA Consists of Two Complementary and Antiparallel Nucleotide Strands That Form a Double Helix • Secondary structure of DNA • Different secondary structures

  9. 10.4 Special Structure Can Form in DNA and RNA • Hairpin structure: In single strands of nucleotides, when sequences of nucleotides on the same strand are inverted complements, a hairpin structure will be formed.

  10. 10.4 Special Structure Can Form in DNA and RNA • InvertedRepeats: in double-stranded DNA, sequences that are inverted replicas of each other • Palindrome: If an inverted repeat is also complementary to itself, then it is called a palindrome. • Cruciform: A hairpin forms within each of the two single-stranded sequences, which makes a cruciform.

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