2. What type of base pairing DNA nanotechnology utilizes to construct well-defined structures out of DNA?

Watson–Crick base pairing

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Neil –Khurana base pairing

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Einstein-Bose base pairing

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Solution

The correct option is A Watson–Crick base pairing
A base pair is a unit consisting of two nucleobases bound to each other by hydrogen bonds. They form the building blocks of the DNA double helix, and contribute to the folded structure of both DNA and RNA.
Dictated by specific hydrogen bonding patterns, Watson-Crick base pairs (guanine-cytosine and adenine-thymine) allow the DNA helix to maintain a regular helical structure that is subtly dependent on its nucleotide sequence.

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