问题
问答题
对一双链DNA而言,若一条链中(A+G)/(T+C)=0.7,则:
互补链中(A+G)/(T+C)=
答案
参考答案:(1)设DNA的两条链分别为α和β,那么:A α=T β,T α=A β ,G α=C β:Cα=Gβ
∵(Aα+Gα)/(Tα+Cα)=(Tβ+C β)/(A β+Gβ)=0.7
∴互补链中,(Aβ+G β)/(Tβ+Cβ)=1/0.7=1.43
对一双链DNA而言,若一条链中(A+G)/(T+C)=0.7,则:
互补链中(A+G)/(T+C)=
参考答案:(1)设DNA的两条链分别为α和β,那么:A α=T β,T α=A β ,G α=C β:Cα=Gβ
∵(Aα+Gα)/(Tα+Cα)=(Tβ+C β)/(A β+Gβ)=0.7
∴互补链中,(Aβ+G β)/(Tβ+Cβ)=1/0.7=1.43