noun🔗Share鸟嘌呤 A substance first obtained from guano; it is a nucleic base and pairs with cytosine in DNA and RNA (by means of three hydrogen bonds)."The scientist studied the guanine content in the DNA samples from the ancient fossils. "科学家研究了从古代化石中提取的DNA样本中的鸟嘌呤含量。biochemistrybiologychemistrysubstancecompoundChat with AIVocabulary GamePractice Reading
