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    Chemical Structure and Hydrogen Bonds in Base Pairs

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    Draw the chemical structure of a correctly base paired G-C pair, then re-draw the pair with a propeller twist (these answers should all be on one page following box 'G'). Identify which hydrogen bonds are strengthened, weakened or left unchanged and why. Repeat the process for a base pair buckle and base opening. In this specific case, to simplify the answer, do NOT allow rotation of any amino groups on the bases - keep every structural feature fixed EXCEPT the twist, buckle or opening action.

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    https://brainmass.com/chemistry/organic-chemistry-bonding/chemical-structure-hydrogen-bonds-base-pairs-523281

    Solution Preview

    See the attached sheet for the solution and diagrams.

    4. Draw the chemical structure of a correctly base paired G-C pair, then re-draw the pair with a propeller twist (these answers should all be on one page following box 'G'). Identify which hydrogen bonds are strengthened, weakened or left ...

    Solution Summary

    Structure of propellar twists are shown. Hydrogen bonds in base pairs are determined.

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