DNA RNA replication transcription translation NEET-UG Biology MCQ

Thymine dimers interfere with DNA synthesis by

Acausing a break in the DNA template strand

Bforming apurinic/apyrimidic sites in DNA strands

Ccausing bends and kinks, affecting the DNA double helix, thereby hindering replication and transcription

Dforming negative supercoils between the two DNA strands

Correct answer: C. causing bends and kinks, affecting the DNA double helix, thereby hindering replication and transcription

Thymine dimers cause structural distortions in the DNA molecule by creating bends and kinks. These distortions interfere with the normal processes of DNA replication and transcription, making option C the correct answer.

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