[化] 胞嘧啶[医] 胞嘧啶
n. a base found in DNA and RNA and derived from pyrimidine; pairs with guanine
1.That's assuming cytosine and guanine or thymine and adenine.
那你是假设了这些是胞嘧啶 鸟嘌呤 胸腺嘧啶和腺嘌呤