a cytidine(6-4)thymidine in DNA <=> a cytidine-thymine dinucleotide in DNA
a cytidine(6-4)thymidine in dna <=> a cytidine-thymine dinucleotide in dna
a cytidine(6-4)thymidine in DNA <=> a cytidine-thymine dinucleotide in DNA
a cytidine(6-4)thymidine in dna <=> a cytidine-thymine dinucleotide in dna