29 DNA 的胞嘧啶(cytosine)會自然產生去胺作用(deamination)變成:
(A)Adenine
(B)Guanine
(C)Thymine
(D)Uracil
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統計: A(18), B(30), C(36), D(77), E(0) #649069
統計: A(18), B(30), C(36), D(77), E(0) #649069