Which outcome results when ultraviolet radiation causes thymine dimers in DNA within skin cells?

💡 Explanation

When UV radiation causes thymine dimers, the covalent bonds between adjacent thymine bases distort the DNA helix because the dimerization interferes with normal base pairing using molecular orbitals, disrupting replication and repair mechanisms. Therefore disrupted replication results, rather than increased ATP, enhanced protein folding, or improved electron transport, which involve different biochemical pathways.

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