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Is there any possible way a person can get a triple helix strand that would cause a rare form of cancer? If this person is not a twin, could high levels of radiation also cause it?
Question Date: 2019-10-22
Answer 1:

It is not possible for a "triple helix" to form in DNA. The DNA double helix is built from two strands that are connected by hydrogen bonds between nucleotides on each strand. The base-pairing is always one to one due to the chemical nature of the molecules. Here is a link to a website that has a description and shows a diagram of the DNA double helix: dna structure .

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