摘要:碱基互补 (A1+G1)/(C1+T1) =N (不互补碱基和的比在两单链上互为倒数) 配对原则 (A2+G2)/(C2+T2) =1/N.DNA=1(在双链上为1) (A1+T1) = (A2+T2) = (A+U)mRNA=1/2(A+T) (A1+T1)% = (A2+T2) %= (A+U)mRNA%=(A+T)% A1%+A2%=2A DNA % 时间:间期(减数第一次分裂间期.或有丝分裂间期)

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