The sequence of purines and pyrimidines in nucleic acids and polynucleotides. Included here are nucleotide-rich regions, conserved sequence, and DNA transforming region.
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- 核酸及多核苷酸中的嘌呤或嘧啶序列;包括富含核苷区;保存序列及脱氧核糖核酸转换区.