Question

Nonionizing radiation, such as UV light, causes covalent bonds to form between adjacent pyrimidine bases. This would most likely form a dimer of:

(A) Thymine and thymine (B) Cystosine and cytosine (C) Cytosine and thymine D) Uracil and cytosine​

Answer 1

Answer:

C

Explanation:

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Answer 2

Answer:

Explanation: Pyrimidine dimers are molecular lesions formed from thymine or cytosine bases in DNA via photochemical reactions. [1][2] Ultraviolet light (UV) induces the formation of covalent linkages between consecutive bases along the nucleotide chain in the vicinity of their carbon–carbon double bonds.