b)碱基异构式引起DNA复制的错配 正确配对A(a)=T(k)G(k)=C(a) 错误配对(a)C(i)G(k)=Te) A(i)=C(a G(e)T(k AGi, anti)=A(a, syn) A(, anti=G(k, syn) Ge i, antiG(k, syn)G(e, i, anti-A(a, syn)b) 碱基异构式引起DNA复制的错配 A(a) T(k) G(k) C(a) 错误配对 A(a) C(i) G(k) T(e) A(i, anti) A(a, syn) A(i, anti) G(k, syn) G(e,i, anti) G(k, syn) G(e,i, anti) A(a, syn) A(i) C(a) G(e) T(k) 正确配对