noun🔗Share胞嘧啶 A heterocyclic base, 4-aminopyrimidin-2(1H)-one, which pairs with guanine in DNA and RNA (by means of three hydrogen bonds)."In the DNA sequence, cytosine always pairs with guanine, like two puzzle pieces fitting together. "在DNA序列中，胞嘧啶总是和鸟嘌呤配对，就像两块拼图严丝合缝地拼接在一起。chemistrybiologybiochemistrycompoundsubstanceChat with AIVocabulary GamePractice Reading
