DNA double helix does not have which of the following?Group of answer choicescomplementary base pairingparallel configurationthyminemajor and minor grooves
Question
DNA double helix does not have which of the following?Group of answer choicescomplementary base pairingparallel configurationthyminemajor and minor grooves
Solution
The DNA double helix does not have a parallel configuration.
Here's why:
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Complementary base pairing: DNA does have this. Adenine (A) always pairs with Thymine (T), and Cytosine (C) always pairs with Guanine (G). This is known as complementary base pairing.
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Parallel configuration: DNA does not have this. The two strands of DNA run in opposite directions to each other, this is known as antiparallel configuration. One strand runs from 5' to 3' direction, and the other runs from 3' to 5' direction.
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Thymine: DNA does have this. Thymine is one
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