| 21. | Most of the scientific community hesitated several years before accepting the double helix proposal.
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| 22. | The nucleobases are important in base pairing of strands to form higher-level double helix.
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| 23. | DNA origami structures contain a large number of double helixes with exposed blunt ends.
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| 24. | The serpenth " represents the Kundalini and the double helix of the DNA ".
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| 25. | There is also a major groove and a minor groove on the double helix.
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| 26. | All other configurations between nucleobases would hinder double helix formation.
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| 27. | Maybe somebody stands to profit by selling Ted's double helix.
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| 28. | The double helix of DNA is unchallenged as the image epitomizing the biological sciences.
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| 29. | The double helix of DNA wasn't discovered until the 50s.
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| 30. | If the double helix offends people, get rid of it.
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