UV light typically causes
- A
Frameshift insertions (e.g., extra bases), which shift reading frames and require repair
- B
Double-strand breaks (e.g., chromosome fragments), which separate DNA and require repair
- Ccheck_circle
Pyrimidine dimers (e.g., thymine-thymine), which distort DNA and require repair
- D
Single base substitutions (e.g., G-to-A), which alter codons and require repair
Explanation
UV damage forms covalent bonds between adjacent thymines, blocking replication unless repaired by NER (nucleotide excision repair).