CH1 Key Concepts

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Last updated 12:38 AM on 9/8/26
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11 Terms

1
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C to C single bond length

1.54Å

2
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C to C single bond energy

355 kJ/mol

3
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C to C double bond length

1.34Å

4
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C to C double bond energy

730 kJ/mol

5
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What are the 4 “weak” interactions?

  1. Ionic interactions

  2. Hydrogen bonds

  3. VDW

  4. Hydrophobic effect


6
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What are the 2 things that make up the DNA backbone?

  1. Alternating sugar & phosphate grps

  2. Nitrogenous bases


7
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How many bonds can A & T make?

2

8
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How many bonds can C & G make?

3

9
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Why does ssDNA for dsDNA in solution?

  1. Aqueous environment overcomes ionic repulsion

  2. H bonds ensure base pairing specificity

  3. VDW & hydrophobic effect encourage base stacking


10
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Do H bonds play a role in energetics of dsDNA formation?

No; play a role in base pairing specificity

11
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